# Patent

## Title
Derivatives of 3-hydroxy-4-(cyclyl-alkylaminoalkyl)-5-phenyl-1h-pyrazole as antagonists of the gonadotropin releasing hormone (GnRH) for use in the treatment of sex hormone related conditions, such as prostatic of uterine cancer

## Abstract

The invention relates to a group of novel pyrazole compounds of Formula (I): wherein: R1, R2, R3, M and R5 are as defined in the specification, which are useful as gonadotrophin releasing hormone antagonists. The invention also relates to pharmaceutical formulations of said compounds, methods of treatment using said compounds and to processes for the preparation of said compounds.

## Background
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a US National Stage under 35 U.S.C 371 of International Application No. PCT/GB2003/003633, filed Aug. 19, 2003, which claims priority under 35 U.S.C. § 119(a)-(d) to European Patent Application No. 02292077.1 filed on Aug. 21, 2002, the specification of which is incorporated by reference herein.
The present invention relates to compounds which are antagonists of gonadotropin releasing hormone (GnRH) activity. The invention also relates to pharmaceutical formulations, the use of a compound of the present invention in the manufacture of a medicament, a method of therapeutic treatment using such a compound and processes for producing the compounds.
Gonadotropin releasing hormone (GnRH) is a decapeptide that is secreted by the hypothalamus into the hypophyseal portal circulation in response to neural and/or chemical stimuli, causing the biosynthesis and release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) by the pituitary. GnRH is also known by other names, including gonadoliberin, LH releasing hormone (LHRH), FSH releasing hormone (FSH RH) and LH/FSH releasing factor (LH/FSH RF).
GnRH plays an important role in regulating the action of LH and FSH (by regulation of their levels), and thus has a role in regulating the levels of gonadal steroids in both sexes, including the sex hormones progesterone, oestrogens and androgens. More discussion of GnRH can be found in WO 98/5519 and WO 97/14697, the disclosures of which are incorporated herein by reference.
It is believed that several diseases would benefit from the regulation of GnRH activity, in particular by antagonising such activity. These include sex hormone related conditions such as sex hormone dependent cancer, benign prostatic hypertrophy and myoma of the uterus. Examples of sex hormone dependent cancers are prostatic cancer, uterine cancer, breast cancer and pituitary gonadotrophe adenoma.
The following disclose compounds purported to act as GnRH antagonists: WO 97/21435, WO 97/21703, WO 97/21704, WO 97/21707, WO 55116, WO 98/55119, WO 98/55123, WO 98/55470, WO 98/55479, WO 99/21553, WO 99/21557, WO 99/41251, WO 99/41252, WO 00/04013, WO 00/69433, WO 99/51231, WO 99/51232, WO 99/51233, WO 99/51234, WO 99/51595, WO 99/51596, WO 00/53178, WO 00/53180, WO 00/53179, WO 00/53181, WO 00/53185, WO 00/53602, WO 02/066477, WO 02/066478, WO 02/06645 and WO 02/092565.
It would be desirable to provide further compounds, such compounds being GnRH antagonists. Thus, according to the first aspect of the invention there is provided a compound of Formula (I),




wherein:

    
    
        R1 is selected from: hydrogen, optionally-substituted C1-6alkyl, optionally substituted aryl or optionally-substituted arylC1-6alkyl;
        R2 is an optionally-substituted mono or bi-cyclic aromatic ring;
        R3 is selected from a group of Formula (IIa) to Formula (IIf):
    
    






    
    
        R5 is a group of Formula (III):
    
    






    
    
        R6 and R6a are independently selected from hydrogen, fluoro, optionally substituted C1-6alkyl, optionally-substituted aryl or optionally substituted arylC1-6alkyl, or R6 and R6a taken together and the carbon atom to which they are attached form a carbocyclic ring of 3-7 atoms, or R6 and R6a taken together and the carbon atom to which they are attached form a carbonyl group;
        or when A is not a direct bond the group
    
    






    
    
         forms a carbocyclic ring of 3-7 carbon atoms or a heterocyclic ring containing one or more heteroatoms;
        or the group
    
    






    
    
         forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms;
        R7 is selected from: hydrogen, optionally-substituted C1-6alkyl, optionally-substituted arylC1-6alkyl, optionally-substituted aryl, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl, R9OC1-6alkyl-, R9R10NC1-6alkyl-, R9R10NC(O)C1-6alkyl, —C(NR9R10)═NH;
        
            or when R3 is a group of Formula (IIc) or (IId) R7 is of the formula -J-K—R8;
        
        
        R8 is selected from:
        
            (i) hydrogen, C1-6alkyl, C2-6alkenyl, C2-6alkynyl, haloC1-6alkyl, C1-4alkoxyC1-4alkyl, hydroxy, hydroxyC1-6alkyl, cyano, N—C1-4alkylamino, N,N-di-C1-4alkylamino, C1-6alkyl-S(On)—, —O—Rb, —NRbRc, —C(O)—Rb, —C(O)O—Rb, —CONRbRc, NH—C(O)—Rb or —S(On)NRbRc,
            
                where Rb and Rc are independently selected from hydrogen and C1-4alkyl optionally substituted with hydroxy, amino, N—C1-4alkylamino, N,N-di-C1-4alkylamino, HO—C2-4alkyl-NH— or HO—C2-4alkyl-N(C1-4alkyl)-;
            
            
            (ii) nitro when B is a group of Formula (IV) and X is CH and p is 0;
            (iii) C3-7cycloalkyl, aryl or arylC1-6alkyl each of which is optionally substituted by R12, R13 and R14;
            (iv) -(Q)-aryl, -(Q)-heterocyclyl, -aryl-(Q)-aryl, each of which is optionally substituted by R12, R13 and R14 wherein -(Q)- is selected from E, F or a direct bond;
            (v) heterocyclyl or heterocyclylC1-6alkyl each of which is optionally substituted by up to 4 substituents independently selected from R12, R13 and R14;
            (vi) a group selected from R12, R13 and R14;
        
        
        R9 and R10 are independently selected from: hydrogen, hydroxy, optionally substituted C1-6alkyl, optionally substituted aryl, optionally substituted arylC1-6alkyl, an optionally substituted carbocyclic ring of 3-7 atoms, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl or R9 and R10 taken together can form an optionally substituted ring of 3-9 atoms or R9 and R10 taken together with the carbon atom to which they are attached form a carbonyl group;
        R11 is selected from: hydrogen, optionally substituted C1-6alkyl, or N(R9R10);
        R12 is selected from: hydrogen, hydroxy, R17R18N(CH2)cc—, R17R18NC(O)(CH2)cc—, optionally substituted C1-6alkyl-C(O)N(R9)(CH2)cc—, optionally substituted C1-6alkyl-SO2N(R9)—, optionally substituted aryl-SO2N(R9)—, C1-3perfluoroalkyl-SO2N(R9)—; optionally substituted C1-6alkyl-N(R9)SO2—, optionally substituted aryl-N(R9)SO2—, C1-3perfluoroalkyl-N(R9)SO2—, optionally substituted C1-6alkanoyl-N(R9)SO2—; optionally substituted aryl-C(O)N(R9)SO2—, optionally substituted C1-6alkyl-S(On)—, optionally substituted aryl-S(On)—, C1-3perfluoroalkyl-, C1-3perfluoroalkoxy, optionally substituted C1-6alkoxy, carboxy, halo, nitro or cyano;
        R13 and R14 are independently selected from: hydrogen, hydroxy, oxo, optionally substituted C1-6alkyl, optionally substituted C1-6alkanoyl, optionally substituted C2-6alkenyl, cyano, nitro, C1-3perfluoroalkyl-, C1-3perfluoroalkoxy, optionally substituted aryl, optionally substituted arylC1-6alkyl, R9O(CH2)s—, R9(O)O(CH2)s—, R9OC(O)(CH2)s—, R16S(On)(CH2)s—, R9R10NC(O)(CH2)s— or halo;
        R15 is selected from: hydrogen, optionally substituted C1-6alkyl, R19OC(O)—, R9R10NC(O)—, R9C(O)—, R9S(On)—;
        R16 is selected from: hydrogen, C1-6alkyl, C1-3perfluoroalkyl or optionally-substituted aryl;
        R17 is independently selected from: hydrogen, hydroxy, cyano or optionally substituted C1-6alkyl;
        R18 is a group of formula R18a—C(R9R10)0-1— wherein R18a is selected from: R19OC(O)—, R9R10NC(O)—, R9R10N—, R9C(O)—, R9C(O)N(R10)—, R9R10NC(O)—, R9R10NC(O)N(R10)—, R9SO2N(R10)—, R9R10NSO2N(R10)—, R9C(O)O—, R9OC(O)—, R9R10NC(O)O—, R9O—, R9S(On)—, R9R10NS(On)—, hydrogen, optionally substituted C1-6alkyl, optionally substituted heterocyclyl;
        or R17 and R18 when taken together form an optionally substituted carbocyclic ring of 3-7 atoms or optionally substituted heterocyclyl;
        R19 is selected from: hydrogen, optionally substituted C1-6alky, optionally substituted aryl, optionally substituted arylC1-6alkyl, optionally substituted C3-7cycloalkyl, optionally substituted heterocyclyl or optionally substituted heterocyclylC1-6alkyl;
        R21 and R22 are independently selected from hydrogen, optionally substituted C1-6alkyl, optionally substituted C3-7cycloalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl, optionally substituted C3-6alkenyl, optionally substituted C3-6alkynyl, —(C1-5alkyl)aa-S(On)—(C1-5alkyl)bb-; R9R10NC2-6alkyl, R9OC2-6alkyl or R9R10NC(O)C2-6alkyl, with the proviso that R9 and R10 independently or taken together are not optionally substituted aryl or optionally substituted arylC1-6alkyl; or
        R21 and R22 taken together form an optionally substituted non-aromatic heterocyclic ring;
        A is selected from:
        
            (i) a direct bond;
            (ii) optionally-substituted C1-5alkylene wherein the optional substituents are independently selected from: optionally-substituted C1-6-alkyl optionally-substituted aryl or optionally substituted arylC1-6alkyl;
            (iii) a carbocyclic ring of 3-7 atoms;
            (iv) a carbonyl group or —C(O)—C(RdRd)—, wherein Rd is independently selected from hydrogen and C1-2alkyl;
        
        
        or when R3 is a group of Formula (IIa) or (IIb), the group
    
    






    
    
         forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms;
        or when R3 is a group of Formula (IIa), (IIb), (IIc) or (IId), the group
    
    






    
    
         forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms;
        B is selected from:
        
            (i) a direct bond;
            (ii) a group of Formula (IV)
        
        
    
    






    
    
        
        
            
            
                wherein:
                X is selected from N or CH, wherein at position (a) Formula (IV) is attached to the nitrogen atom and the (CH2)p group is attached to R8; and
            
            
            (iii) a group independently selected from: optionally substituted C1-6alkylene, optionally substitute C3-7cycloalkyl, optionally substituted C3-6alkenylene, optionally substituted C3-6alkynyl, C1-6alkoxy, (C1-5alkyl)aa-S(On)—(C1-5alkyl)bb-, —(C1-5alkyl)aa-O—(C1-5alkyl)bb-, —(C1-5alkyl)aa-C(O)—(C1-5alkyl)bb- or (C1-5alkyl)aa-N(R15)—(C1-5alkyl)bb,
            
                wherein R15 and the (C1-5alkyl)aa or (C1-5alkyl)bb chain can be joined to form a ring, wherein the combined length of (C1-5alkyl)aa and (C1-5alkyl)bb is less than or equal to C5alkyl;
            
            
        
        
        or the group —B—R8 represents a group of Formula (V)
    
    






    
    
        or the group
    
    






    
    
         together forms an optionally substituted heterocyclic ring containing 4-7 carbons atoms;
        or the group
    
    






    
    
         forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms;
        E is —O—, —S(On), —C(O)—, —NR15— or —C(R9R10)q;
        F is -E(CH2)r—;
        G is selected from: hydrogen, halo, N, O, S(On), C(O), C(R9R10)t, optionally substituted C2-6alkenylene, optionally substituted C2-6alkynylene or a direct bond to R18,
        J is a group of the formula: —(CH2)s-L-(CH2)s— wherein when s is greater than 0, the alkylene group is optionally substituted,
        or the group
    
    






    
    
         together forms an optionally substituted heterocyclic ring containing 4-7 carbons atoms;
        K is selected from: a direct bond, —(CH2)s1—, —(CH2)s1—O—(CH2)s2—, —(CH2)s1—C(O)—(CH2)s2—, —(CH2)s1—S(On)—(CH2)s2—, —(CH2)s1—N(R18)—(CH2)s2—, —(CH2)s1—C(O)N(R9)—(CH2)s2—, —(CH2)s1, —N(R9)C(O)—(CH2)s2—, —(CH2)s1—N(R9)C(O)N(R9)—(CH2)s2—, —(CH2)s1—OC(O)—(CH2)s2—, —(CH2)s1—C(O)O—(CH2)s2—, —(CH2)s1—N(R9)C(O)O—(CH2)s2—, —(CH2)s1—OC(O)N(R9)—(CH2)s2—, —(CH2)s1—OS(On)—(CH2)s2—, or —(CH2)s1—S(On)—O—(CH2)s2—, —(CH2)s1—S(O)2N(R9)—(CH2)s2— or —(CH2)s1—N(R9)S(O)2—(CH2)s2—; wherein the —(CH2)s1— and —(CH2)s2— groups are independently optionally substituted by hydroxy or C1-4alkyl;
        L is selected from optionally substituted aryl or optionally substituted heterocyclyl;
        M is selected from —(CH2)0-2—O— or C(O)NH—;
        n is an integer from 0 to 2;
        p is an integer from 0 to 4;
        q is an integer from 0 to 4;
        r is an integer from 0 to 4;
        s is an integer from 0 to 4;
        s1 and s2 are independently selected from an integer from 0 to 4, and s1+s2 is less than or equal to 4;
        t is an integer between 0 and 4; and
        aa and bb are independently 0 or 1;
        cc is an integer between 0 to 2;
        with the proviso that
        (i) when G is hydrogen or halo, then R17 and R18 are both absent;
        (ii) when G is O, S(On), C(O) or C(R11R12)t then G is substituted by a single group independently selected from the definition of R17 or R18 and when G is a direct bond to R18 then G is substituted by a single group selected from R18;
        (iii) when R3 is a group of Formula (IIb), B is a group of Formula (IV), R8 is selected from group (i) or (ii) above, R11 is a group of the formula N(R10R11) and R1, R2 and R5 are as defined above then R4 cannot be hydrogen;
        (iv) R3 cannot be unsubstituted pyridyl or unsubstituted pyrimidinyl; and
        (v) when R3 is pyrazolyl substituted by phenyl or pyrazolyl substituted by phenyl and acetyl, R5-M is hydroxyl or acetyloxy, R2 is unsubstituted phenyl, then R1 cannot be hydrogen or acetyl;
        or a salt, solvate or pro-drug thereof.
    
    


According to the further feature of the first aspect of the invention there is provided a compound of Formula (I) with the proviso that

    
    
        (i) when G is hydrogen or halo, then R17 and R18 are both absent;
        (ii) when G is O, S(On), C(O) or C(R11R12)t then G is substituted by a single group independently selected from the definition of R17 or R18 and when G is a direct bond to R18 then G is substituted by a single group selected from R18;
        (iii) when R3 is a group of Formula (IIb), B is a group of Formula (IV), R8 is selected from group (i) or (ii) above, R11 is a group of the formula N(R10R11) and R1, R2 and R5 are as defined above then R4 cannot be hydrogen; and
        (iv) R3 cannot be an unsubstituted or substituted aromatic heterocyclic ring, wherein the aromatic heterocyclic ring is attached directed to the pyrazole in Formula (I);
        or a salt, solvate or pro-drug thereof.
    
    


According to the further feature of the first aspect of the invention there is provided a compound of Formula (Ia),




wherein:

    
    
        R1 is selected from: hydrogen, optionally-substituted C1-6alkyl, optionally substituted aryl or optionally-substituted arylC1-6alkyl;
        R2 is an optionally-substituted mono or bi-cyclic aromatic ring;
        R3 is selected from a group of Formula (IIa) to Formula (IIf):
    
    






    
    
        R5 is a group of Formula (III):
    
    






    
    
        R6 and R6a are independently selected from hydrogen, optionally substituted C1-6alkyl, optionally-substituted aryl or optionally substituted arylC1-6alkyl, or R6 and R6a taken together and the carbon atom to which they are attached form a carbocyclic ring of 3-7 atoms, or R6 and R6a taken together and the carbon atom to which they are attached form a carbonyl group;
        or when A is not a direct bond the group
    
    






    
    
         forms a carbocyclic ring of 3-7 carbon atoms or a heterocyclic ring containing one or more heteroatoms;
        or the group
    
    






    
    
         forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms;
        R7 is selected from: hydrogen, optionally-substituted C1-6alkyl, optionally-substituted arylC1-6alkyl, optionally-substituted aryl, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl, R9OC1-6alkyl-, R9R10NC1-6alkyl-, R9R10NC(O)C1-6alkyl, —C(NR9R10)═NH;
        
            or when R3 is a group of Formula (IIc) or (IId) R7 is of the formula -J-K—R8;
        
        
        R8 is selected from:
        
            (i) hydrogen, C1-6alkyl, C2-6alkenyl, C2-6alkynyl, haloC1-6alkyl, C1-4alkoxyC1-4alkyl, hydroxy, hydroxyC1-6alkyl, cyano, N—C1-4alkylamino, N,N-di-C1-4alkylamino, C1-6alkyl-S(On)—, —O—Rb, —NRbRc, —C(O)—Rb, —C(O)O—Rb, —CONRbRc or NH—C(O)—Rb, where Rb and Rc are independently selected from hydrogen and C1-4alkyl optionally substituted with hydroxy, amino, N—C1-4alkylamino, N,N-di-C1-4alkylamino, HO—C2-4alkyl-NH— or HO—C2-4alkyl-N(C1-4alkyl)-;
            (ii) nitro when B is a group of Formula (IV) and X is CH and p is 0;
            (iii) C3-7cycloalkyl, aryl or arylC1-6-alkyl each of which is optionally substituted by R12, R13 and R14;
            (iv) -(Q)-aryl, -(Q)-heterocyclyl, -aryl-(Q)-aryl, each of which is optionally substituted by R12, R13 and R14 wherein -(Q)- is selected from E, F or a direct bond;
            (v) heterocyclyl or heterocyclylC1-6alkyl each of which is optionally substituted by R12, R13 and R14;
            (vi) a group selected from R12, R13 and R14;
        
        
        R9 and R10 are independently selected from: hydrogen, hydroxy, optionally substituted C1-6alkyl, optionally substituted aryl, optionally substituted arylC1-6alkyl, an optionally substituted carbocyclic ring of 3-7 atoms, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl or R9 and R10 taken together can form an optionally substituted ring of 3-9 atoms or R9 and R10 taken together with the carbon atom to which they are attached form a carbonyl group;
        R11 is selected from: hydrogen, optionally substituted C1-6alkyl, or N(R9R10);
        R12 is selected from: hydrogen, hydroxy, R17R18N—, optionally substituted C1-6alkyl-SO2N(R9)—, optionally substituted aryl-SO2N(R9)—, C1-3perfluoroalkyl-SO2N(R9)—; optionally substituted C1-6alkyl-N(R9)SO2—, optionally substituted aryl-N(R9)SO2—, C1-3perfluoroalkyl-N(R9)SO2— optionally substituted C1-6alkanoyl-N(R9)SO2—; optionally substituted aryl-C(O)N(R9)SO2, optionally substituted C1-6alkyl-S(On)—, optionally substituted aryl-S(On)—, C1-3perfluoroalkyl-, C1-3perfluoroalkoxy, optionally substituted C1-6alkoxy, carboxy, halo, nitro or cyano;
        R13 and R14 are independently selected from: hydrogen, optionally substituted C1-6alkyl, optionally substituted C2-6alkenyl, cyano, nitro, C1-3perfluoroalkyl-, C1-3perfluoroalkoxy, optionally substituted aryl, optionally substituted arylC1-6alkyl, R9O(CH2)s—, R9(O)O(CH2)s—, R9OC(O)(CH2)s—, R16S(On)(CH2)s—, R9R10NC(O)(CH2)s— or halo;
        R15 is selected from: hydrogen, optionally substituted C1-6alkyl, R19OC(O)—, R9R10NC(O)—, R9C(O)—, R9S(On)—;
        R16 is selected from: hydrogen, C1-6alkyl, C1-3perfluoroalkyl or optionally-substituted aryl;
        R17 is independently selected from: hydrogen, hydroxy, cyano or optionally substituted C1-6alkyl;
        R18 is a group of formula R18a—C(R9R10)0-1— wherein R18a is selected from: R19OC(O)—, R9R10NC(O)—, R9R10N—, R9C(O)—, R9C(O)N(R10)—, R9R10NC(O)—, R9R10NC(O)N(R10)—, R9SO2N(R10)—, R9R10NSO2N(R10)—, R9C(O)O—, R9OC(O)—, R9R10NC(O)O—, R9O—, R9S(On)—, R9R10NS(On)—, optionally substituted C1-6alkyl, optionally substituted heterocyclyl;
        or R17 and R18 when taken together form an optionally substituted carbocyclic ring of 3-7 atoms or optionally substituted heterocyclyl;
        R19 is selected from: hydrogen, optionally substituted C1-6alky, optionally substituted aryl, optionally substituted arylC1-6alkyl, optionally substituted C3-7cycloalkyl, optionally substituted heterocyclyl or optionally substituted heterocyclylC1-6alkyl;
        R20 is selected from R12 or R13;
        R21 and R22 are independently selected from hydrogen, optionally substituted C1-6alkyl, optionally substituted C3-7cycloalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl, optionally substituted C3-6alkenyl, optionally substituted C3-6alkynyl, —(C1-5alkyl)aa-S(On)—(C1-5alkyl)bb-; R9R10NC2-6alkyl, R9OC2-6alkyl or R9R10NC(O)C2-6alkyl, with the proviso that R9 and R10 independently or taken together are not optionally substituted aryl or optionally substituted arylC1-6alkyl; or
        R21 and R22 taken together form an optionally substituted non-aromatic heterocyclic ring;
        A is selected from:
        
            (i) a direct bond;
            (ii) optionally-substituted C1-5alkylene wherein the optional substituents are independently selected from: optionally-substituted C1-6alkyl optionally-substituted aryl, optionally substituted arylC1-6alkyl or substituted
            (iii) a carbocyclic ring of 3-7 atoms;
            (iv) a carbonyl group;
        
        
        or when R3 is a group of Formula (IIa) or (IIb), the group
    
    






    
    
         forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms;
        or when R3 is a group of Formula (IIa), (IIb), (IIc) or (IId), the group
    
    






    
    
         forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms;
        B is selected from:
        
            (i) a direct bond;
            (ii) a group of Formula (IV)
        
        
    
    






    
    
        
        
            wherein:
            X is selected from N or CH, wherein at position (a) Formula (IV) is attached to the nitrogen atom and the (CH2)p group is attached to R8; and
            (iii) a group independently selected from: optionally substituted C1-6alkylene, optionally substitute C3-7cycloalkyl, optionally substituted C3-6alkenylene, optionally substituted C3-6alkyl, C1-6alkoxy, (C1-5alkyl)aa-S(On)—(C1-5alkyl)bb-, (C1-5alkyl)aa-O—(C1-5alkyl)bb- or (C1-5alkyl)aa-N(R15)—(C1-5alkyl)bb, wherein R15 and the (C1-5alkyl)aa or (C1-5alkyl)bb chain can be joined to form a ring;
        
        
        or the group —B—R8 represents a group of Formula (V)
    
    






    
    
        or the group
    
    






    
    
         together forms a heterocyclic ring containing 5-7 carbons atoms;
        or the group
    
    






    
    
         forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms;
        E is —O—, —S(On), —C(O)—, —NR15— or —C(R9R10)q;
        F is -E(CH2)r—;
        G is selected from: hydrogen, halo, N, O, S(On), C(O), C(R9R10)t, optionally substituted C2-6alkenylene, optionally substituted C2-6alkynylene or a direct bond to R18,
        J is a group of the formula: —(CH2)s-L-(CH2)s— wherein when s is greater than 0, the alkylene group is optionally substituted
        K is selected from: a direct bond, —O—(CH2)s—, —C(O)—(CH2)s—, —S(On)—(CH2)s—, —N(R18)—(CH2)s—, —OC(O)—(CH2)s—, —C(O)O—(CH2)s—, —OS(On)—(CH2)s—, or —S(On)—O—(CH2)s—;
        L is selected from optionally substituted aryl or optionally substituted heterocyclyl;
        M is —(CH2)0-2—O—;
        n is an integer between 0 and 2;
        p is an integer between 0 and 4;
        q is an integer between 0 and 4;
        r is an integer between 0 and 4;
        s is an integer between 0 and 4; and
        t is an integer between 0 and 4;
        with the proviso that
        
            (i) when G is hydrogen or halo, then R17 and R18 are both absent;
            (ii) when G is O, S(On), C(O) or C(R11R12)t then G is substituted by a single group independently selected from the definition of R17 or R18 and when G is a direct bond to R18 then G is substituted by a single group selected from R18; and
        
        
        or a salt, solvate or pro-drug thereof.
    
    


According to a further feature of the first aspect of the invention there is provided a pharmaceutical formulation comprising a compound of Formula (I) or Formula (Ia), or salt, pro-drug or solvate thereof, and a pharmaceutically acceptable diluent or carrier.
According to a further feature of the first aspect of the invention there is provided the following uses of a compound of Formula (I) or Formula (Ia), or salt, pro-drug or solvate thereof:

    (a) the use in the manufacture of a medicament for antagonising gonadotropin releasing hormone activity;
    (b) the use in the manufacture of a medicament for administration to a patient, for reducing the secretion of luteinizing hormone by the pituitary gland of the patient; and
    (c) the use in the manufacture of a medicament for administration to a patient, for therapeutically treating and/or preventing a sex hormone related condition in the patient, preferably a sex hormone related condition selected from prostate cancer and pre-menopausal breast cancer.


According to a further aspect of the invention there is provided a method of antagonising gonadotropin releasing hormone activity in a patient, comprising administering a compound of Formula (I) or Formula (Ia), or salt, pro-drug or solvate thereof, to a patient.
Whilst pharmaceutically-acceptable salts of compounds of the invention are preferred, other non-pharmaceutically-acceptable salts of compounds of the invention may also be useful, for example in the preparation of pharmaceutically-acceptable salts of compounds of the invention.
Whilst the invention comprises compounds of the invention, and salts, pro-drugs or solvates thereof, in a further embodiment of the invention, the invention comprises compounds of the invention and salts thereof.
In the present specification, unless otherwise indicated, an alkyl, alkylene, alkenyl or alkynyl moiety may be linear or branched. The term “alkylene” refers to the group —CH2—. Thus, C8 alkylene for example is —(CH)8—. For avoidance of doubt the term C0alkyl within the group C0-5alkyl is a direct bond.
The term ‘propylene’ refers to trimethylene and the branched alkyl chains —CH(CH3)CH2— and —CH2—CH(CH3)—. The straight chain propylene di-radical is preferred, i.e. —CH2CH2CH2—. Specific propylene radicals refer to the particular structure, thus the term, propyl-2-ene refers to the group —CH2—CH(CH3)—. Similar notation is used for other divalent alkyl chains such as butylene.
The term ‘2-propenyl’ refers to the group —CH2—CH═CH—.
The term “aryl” refers to phenyl or naphthyl.
The term “carbamoyl” refers to the group —C(O)NH2.
The term “halo” refers to fluoro, chloro, bromo or iodo.
The term “heterocyclyl” or “heterocyclic ring” refers to a 4-12 membered, preferably 5-10 membered aromatic mono or bicyclic ring or a 4-12 membered, preferably 5-10 membered saturated or partially saturated mono or bicyclic ring, said aromatic, saturated or partially unsaturated rings containing up to 5 heteroatoms independently selected from nitrogen, oxygen or sulphur, linked via ring carbon atoms or ring nitrogen atoms where a bond from a nitrogen is allowed, for example no bond is possible to the nitrogen of a pyridine ring, but a bond is possible through the 1-nitrogen of a pyrazole ring. Examples of 5- or 6-membered aromatic heterocyclic rings include pyrrolyl, furanyl, imidazolyl, triazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, pyridinyl, isoxazolyl, oxazolyl, 1,2,4 oxadiazolyl, isothiazolyl, thiazolyl and thienyl. A 9 or 10 membered bicyclic aromatic heterocyclic ring is an aromatic bicyclic ring system comprising a 6-membered ring fused to either a 5 membered ring or another 6 membered ring. Examples of 5/6 and 6/6 bicyclic ring systems include benzofuranyl, benzimidazolyl, benzthiophenyl, benzthiazolyl, benzisothiazolyl, benzoxazolyl, benzisoxazolyl, indolyl, pyridoimidazolyl, pyrimidoimidazolyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, phthalazinyl, cinnolinyl and naphthyridinyl. Examples of saturated or partially saturated heterocyclic rings include pyrrolinyl, pyrrolidinyl, morpholinyl, piperidinyl, piperazinyl, dihydropyridinyl, benzodioxyl and dihydropyrimidinyl. This definition further comprises sulphur-containing rings wherein the sulphur atom has been oxidised to an S(O) or S(O2) group.
The term “aromatic ring” refers to a 5-10 membered aromatic mono or bicyclic ring optionally containing up to 5 heteroatoms independently selected from nitrogen, oxygen or sulphur. Examples of such “aromatic rings” include: phenyl, pyrrolyl, pyrazolyl, furanyl, imidazolyl, triazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, pyridinyl, isoxazolyl, oxazolyl, 1,2,4 oxadiazolyl, isothiazolyl, thiazolyl and thienyl. Preferred aromatic rings include phenyl, thienyl and pyridyl.
The symbol




denotes where the respective group is linked to the remainder of the molecule.

For the avoidance of doubt where two groups or integers appear within the same definition, for example, —(CH2)s-L-(CH2)s— or R9R10NSO2N(R10)—, then these can be the same of different.
For the avoidance of doubt, where several groups together form a ring, for example: ‘the group




forms a heterocyclic ring containing 3-7 carbon atoms and one or more heteroatoms’, then the groups shown cyclises to form a ring, i.e





the component of which are defined by the definitions of the groups which form the ring, thus in the above example the ring would include a nitrogen atom. For example in Example 5 this group forms a piperazine ring.

The term C1-3perfluoroalkyl refers to a C1-3alkyl chain in which all hydrogens have been replaced with a fluorine atom. Examples of C1-3perfluoroalkyl include trifluoromethyl, pentafluoroethyl and 1-trifluoromethyl-1,2,2,2-tetrafluoroethyl-. Preferably C1-3perfluoroalkyl is trifluromethyl.
Examples of C1-8alkyl include: methyl, ethyl, propyl, isopropyl, butyl, iso-butyl, tert-butyl and 2-methyl-pentyl; example of C1-8alkylene include: methylene, ethylene and 2-methyl-propylene; examples of C1-6alkenyl include allyl (2-propenyl) and 2-butenyl, examples of C1-6alkynyl 2-propynyl and 3-butynyl, examples of haloC1-6alkyl include fluoroethyl, chloropropyl and bromobutyl, examples of hydroxyC1-6alkyl include hydroxymethyl, hydroxyethyl and hydroxybutyl, examples of C1-8alkoxy include methoxy, ethoxy and butyloxy; examples of C1-4alkoxyC1-4alkyl include methoxyethyl, propoxybutyl and propoxymethyl, examples of C1-6alkanoyl incude formyl, ethanoyl, propanoyl or pentanoyl, examples of N—C1-4alkylamino include N-methylamino and N-ethylamino; examples of N,N-di-C1-4alkylamino include N,N-dimethylaminoethyl, N,N-di-methylaminopropyl and N,N-dipropylaminoethyl, examples of HO—C2-4alkyl-NH include hydroxymethylamino hydroxyethylamino and hydroxypropyamino, examples of HO—C2-4alkyl-N(C1-4alkyl) include N-methyl-hydroxymethylamino, N-ethyl-hydroxyethylamino, and N-propyl-hydroxypropyamino, examples of C1-6alkyl-S(On)-methylthio, methylsulphinyl, ethylsulphinyl, ethylsulphonyl and propylsulphonyl, include examples of arylC1-6alkyl include benzyl, phenethyl and phenylbutyl, examples of heterocyclylC1-6alkyl include pyrrolidin-1-yl ethyl, imidazolylethyl, pyridylmethyl and pyrimidinylethyl.
It is to be understood that, insofar as certain of the compounds of the invention may exist in optically active or racemic forms by virtue of one or more asymmetric carbon atoms, the invention includes in its definition any such optically active or racemic form which possesses the property of antagonizing gonadotropin releasing hormone (GnRH) activity. The synthesis of optically active forms may be carried out by standard techniques of organic chemistry well known in the art, for example by synthesis from optically active starting materials or by resolution of a racemic form. Similarly, activity of these compounds may be evaluated using the standard laboratory techniques referred to hereinafter.
The invention also relates to any and all tautomeric forms of the compounds of the different features of the invention that possess the property of antagonizing gonadotropin releasing hormone (GnRH) activity.
It will also be understood that certain compounds of the present invention may exist in solvated, for example hydrated, as well as unsolvated forms. It is to be understood that the present invention encompasses all such solvated forms which possess the property of antagonizing gonadotropin releasing hormone (GnRH) activity.
Preferred compounds of Formula (I), Formula (Ia) and Formula (Ib) are those wherein any one of the following apply.
Preferably R1 is selected from hydrogen or optionally substituted C1-6alkyl. More preferably R1 represents hydrogen or unsubstituted C1-6alkyl. Yet more preferably R1 represents hydrogen, methyl, ethyl or tert-butyl. Most preferably R1 represents hydrogen.
Preferably optional substituents on R1 are independently selected from: optionally substituted C1-4alkyl, optionally substituted C2-6alkenyl, cyano, nitro, C1-3perfluoroalkyl, C1-3perfluoroalkoxy, optionally substituted aryl, optionally substituted arylC1-6alkyl, R9O(CH2)v—; R9C(O)O(CH2)v—, R9OC(O)(CH2)v—, R16S(On)(CH2)v—, R9R10NC(O)(CH2)v—, or halo wherein v is an integer between 0 and 4, and where 2 optional substituents are present together they can optionally form a C3-7carbocyclic ring or a heterocyclic ring.
Preferably R2 is an optionally substituted monocyclic aromatic ring structure. Most preferably R2 represents optionally substituted phenyl.
Preferably optional substituents on R2 are independently selected from: optionally substituted C1-6-alkyl, optionally substituted C2-6alkenyl, cyano, nitro, C1-3perfluoroalkyl, C1-3perfluoroalkoxy, optionally substituted aryl, optionally substituted arylC1-6-alkyl, R9O(CH2)p—, R9C(O)O(CH2)w—, R9OC(O)(CH2)w—, R16S(On)(CH2)w—, R9R10NC(O)(CH2)w—, R9R10N— or halo; wherein w is an integer between 0 and 4 and R9 and R10 are as defined above. Further preferably the optional substituents on R2 are independently selected from cyano, ReRfN—, optionally substituted C1-6alkyl (preferably, C1-4alkyl, eg, methyl or ethyl), optionally substituted C1-6alkoxy (preferably, C1-4alkoxy, eg, methoxy, ethoxy or tert-butoxy) or halo (eg, F, Br or Cl) wherein Re and Rf are independently selected from hydrogen, C1-6alkyl or aryl. Yet further preferably optional substituents on R2 are independently selected from methyl, ethyl, methoxy, ethoxy, tert-butoxy, F or Cl. Most preferably optional substituents on R2 are independently selected from methyl, F or Cl. Preferably R2 bears 1, 2 or 3 substituents.
Most preferably R2 represents




Preferably R3 is selected from a group of Formula (IIa) Formula (IIb), Formula (IIc) or Formula (IId). Further preferably R3 is selected from Formula (IIa) or Formula (IIb). Most preferably R3 is a group of Formula (IIb).
Preferably the group of Formula (III):




is selected from a group of Formula III-a; III-b; III-c; III-d; III-e; III-f, III-g, III-h, III-i, or III-j, III-k or III-l;





wherein:

    
    
        het represents an optionally substituted 3- to 8-membered heterocyclic ring containing from 1 to 4 heteroatoms independently selected from O, N and S;
        R23 and R23a are independently selected from:
        
            (i) hydrogen or optionally substituted C1-8alkyl; or
            (ii) R23 and R23a together with the carbon to which they are attached form an optionally substituted 3 to 7-membered cycloalkyl ring;
        
        
        R24 and R25 are selected from:
        
            (i) R24 selected from hydrogen; optionally substituted C1-8alkyl; optionally substituted aryl; —Rd—Ar, where Rd represents C1-8alkylene and Ar represents optionally substituted aryl; and optionally substituted 3- to 8-membered heterocyclic ring optionally containing from 1 to 3 further heteroatoms independently selected from O, N and S; and R25 is selected from hydrogen; optionally substituted C1-8alkyl and optionally substituted aryl;
            (ii) wherein the group of Formula (III) represents a group of Formula III-a, III-b or III-i, then the group NR24(—R25) represents an optionally substituted 3- to 8-membered heterocyclic ring optionally containing from 1 to 3 further heteroatoms independently selected from O, N and S; or
            (iii) wherein the group of Formula (III) represents structure III-e,
        
        
    
    






    
    
        
        
             represents an optionally substituted 3- to 8-membered heterocyclic ring optionally containing from 1 to 4 heteroatoms independently selected from O, N and S;
        
        
    
    


More preferably the group of Formula (III) is selected from a group of Formula III-a, III-g, III-h, III-i, III-j, III-k or III-l:




wherein R23, R23a, R24 and R25 are as defined above.

Further preferably the group of Formula (III) is selected from one of the following groups:




wherein R23, R23a, R24 and R25 are as defined above.

Yet further preferably the group of Formula (III) is selected from one of the following groups:




    
    
        wherein Me represents methyl.
    
    


Yet further preferably the group of Formula (III) is selected from one of the following groups:




Most preferably the group of Formula (III) is:




Preferably R6 and R6a are independently selected from hydrogen, fluoro, optionally substituted C1-6alkyl or R6 and R6a taken together and the carbon atom to which they are attached form a carbocyclic ring of 3-7 atoms More preferably R6 and R6a are independently selected from hydrogen, unsubstituted C1-6alkyl or R6 and R6a taken together and the carbon atom to which they are attached form a carbocyclic ring of 3-7 atoms. Yet more preferably R6 and R6a are independently selected from hydrogen, methyl or R6 and R6a taken together and the carbon atom to which they are attached form cyclopropyl. Most preferably R6 is hydrogen and R6a is methyl.
Preferably R7 is selected from: hydrogen or C1-4alkyl. More preferably R7 is hydrogen or methyl. Most preferably R7 is hydrogen.
When R8 is heterocyclyl then R8 is preferably selected from one of the following groups:







wherein Z is selected from: O, S or N(R9), R20 is selected form any group within the definitions of R12 and R13, and R9, R12, R13 and R14 are as defined above.

In a further embodiment of the invention when R8 is heterocyclyl then R8 is preferably selected from one of the following groups:










wherein Z is selected from: O, S or N(R9) and R9, R12 and R13 are as defined above.

When R8 is aryl or aryl-(C)-aryl optionally substituted by R12, R13 and R14, R8 is preferably selected one of the following groups:




wherein D is selected from group E, group F or a direct bond;

Preferably R8 is selected from

    
    
        (i) hydrogen, C1-6alkyl, C2-6alkenyl, haloC1-6alkyl, hydroxy, cyano, C1-6alkylS(On)—, —O—Rb, C1-4alkoxyC1-4alkyl, —C(O)—Rb, C(O)O—Rb, —NH—C(O)—Rb, N,N-di-C1-4alkylamino, S(On)NRbRc where Rb and Rc are independently selected from hydrogen and C1-6alkyl, and n is 0, 1 or 2;
        (ii) -(Q)-aryl, optionally substituted by up to 3 groups selected from R12, R13 and R14;
        (iii) C4-7heterocyclyl, optionally substituted by up to 3 groups selected from R12, R13 and R14, more preferably selected from: azirinyl, azetidinyl, pyrrolidinyl, pyrazolinyl, pyrazolidinyl, imidazolinyl, imidazolidinyl, piperidinyl, piperazinyl, hexahydropyrimidinyl, hexahydropyridazinyl, hexahydrotriazinyl, tetraydrotriazinyl, dihydrotriazinyl, tetrahydrofuranyl, dioxolanyl, tetrahydropyranyl, dioxanyl, trioxanyl, tetrahydrotienyl, 1-oxotetrahydrothienyl, 1,1-dioxotetrahydrothienyl tetrahydrothiopyran, 1-oxotetrahydrothiopyran, 1,1-dioxotetrahydrothiopyran, dithianyl, trithianyl, morpholinyl, oxathiolanyl, oxathianyl, thiomorpholinyl, thiazinanyl, 1-oxo-thiomorpholinyl, 1,1-dioxo-thiomorpholinyl, thiazolidinyl, pyrrolyl, imidazolyl, triazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, thiazolyl, thiadiazolyl, thiadiazinyl, oxazolyl, isoxazolyl, oxadiazolyl, furazanyl, octahydropyrrolopyrrolyl, octahydropyrrolopyrrolyl, benzotriazolyl, dihydrobenzotriazolyl, indolyl, indolinyl, benzimidazolyl, 2,3-dihydrobenzimidazoly, benzotriazolyl 2,3-dihydro benzotriazolyl quinolinyl, isoquinolinyl, cinnolinyl, phthalazinyl, quinazolinyl, quinozalinyl, naphthyridinyl, pteridinyl, benzodioxolyl, tetrahydrodioxolopyrrolyl, 1,5-dioxa-9-azaspiro[5.5]undecanyl or 8-oxa-3-azabicyclooctanyl; each of which is optionally substituted by up to 3 groups selected from R12, R13 and R14 or
        (iv) C3-7carbocyclyl; optionally substituted by up to 3 groups selected from R12, R13 and R14;
    
    


Further preferably R8 is selected from

    
    
        (i) hydrogen, C1-6alkyl, C2-6alkenyl, haloC1-6alkyl, hydroxy, cyano, C1-6alkylS(On)—, —O—Rb, C1-4alkoxyC1-4alkyl, —C(O)—Rb, C(O)O—Rb, —NH—C(O)—Rb, N,N-di-C1-4alkylamino, —S(On)NRbRc where Rb and Rc are independently selected from hydrogen and C1-6alkyl, and n is 0, 1 or 2;
        
            preferably selected from: hydrogen, methyl, isopropyl, t-butyl, 1-methylethyl, allyl, fluoroethyl, hydroxy, cyano, ethylsulphonyl, methoxy, 1-methyl-2-methoxyethyl, acetyl, t-butoxycarbonyl, acetylamino, dimethylamino, diethylamino, (1-methylethyl)amino, isopropylamino or aminosulphonyl;
        
        
        (ii) -(Q)-aryl, wherein aryl is optionally substituted by up to 3 groups selected from R12, R13 and R14;
        (iii) azetidinyl, furanyl, tetrahydrofuranyl, tetrahydropyranyl, pyrrolidinyl, piperidinyl, piperazinyl, hexahydropyrimidinyl, morpholinyl, tetrahydrothienyl, 1,1-dioxotetrahydrothienyl, thiomorpholinyl, 1-oxo-thiomorpholinyl, 1,1-dioxo-thiomorpholinyl, imidazolyl, triazolyl, thienyl, thiazolyl, isoxazolyl, pyridyl, pyrimidinyl, pyrazinyl, tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyrrolyl, 1,5-dioxa-9-azaspiro[5.5]undecanyl, 8-oxa-3-azabicyclo[3.2.1]octanyl, benzodioxolyl, 2,3-dihydrobenzotriazolyl, 1,2-dihydroquinolinyl or octahydropyrrolo[3,4-c]pyrrolyl; each of which is optionally substituted by up to 3 groups selected from R12, R13 and R14; or
        (iv) C3-7carbocyclyl, optionally substituted by up to 3 groups selected from R12, R13 and R14;
    
    


Yet further preferably R8 is selected from

    
    
        (i) phenyl optionally substituted by up to 3 groups selected from R12, R13 and R14 or naphthyl;
        (ii) furanyl, tetrahydropyranyl, pyrrolidinyl, piperazinyl, morpholinyl, 1,1-dioxo-thiomorpholinyl, thienyl, triazolyl, pyridyl, pyrimidinyl, pyrazinyl, tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyrrolyl, benzodioxolyl, 1,2-dihydroquinolinyl or 2,3-dihydrobenzotriazolyl; each of which is optionally substituted by up to 3 groups selected from R12, R13 and R14; or
        (iii) C3-7carbocyclyl (preferably cyclohexyl or cylopentyl, more preferably cyclohexyl) optionally substituted by up to 3 groups selected from R12, R13 and R14;
    
    


Further preferably R8 is selected from: phenyl, thienyl, pyridyl and benzodioxlyl optionally substituted by up to 3 groups selected from R12, R13 and R14.
Most preferably R8 is 1,3 benzodioxolyl.
In another embodiment of the invention R8 is selected from piperidinyl or piperazinyl, azetidinyl, imidazolyl and thiazolyl, each of which is optionally substituted by up to 3 groups selected from R12, R13 and R14.
In a further embodiment of the invention preferably R8 is selected from hydrogen, cyano, C1-4alkyl (more preferably methyl), C2-6alkynyl (more prefeably 2-propynyl), hydroxyC1-6alkyl (more preferably hydroxyethyl), C1-4alkoxyC1-4alkyl (more preferably methoxyethyl), haloC1-6alkyl (more preferably fluoroethyl), C1-4alkanoyl (more preferably formyl), C1-4alkoxycarbonyl (more preferably butyloxycarbonyl), N,N-di-C1-4alkylamino (more preferably N,N-dimethylaminoethyl and N,N-dimethylaminopropyl), C1-6alkyl-S(On)— (more preferably ethylsulphonyl), cyclopentyl, phenyl, benzyl, cyanophenyl, pyrrolidinyl, pyrrolidinylethyl, imidazolyl, imidazolyC1-6alkyl (more preferably imidazolylethyl), thiazolyl, pyridyl, pyridylC1-6alkyl (more preferably pyridylmethyl) or pyrimidyl wherein a phenyl or heterocyclyl ring is optionally substituted by C1-4alkyl or halo.
When R9 and/or R10 is a component of group G, R9 and R10 are preferably independently selected from hydrogen, optionally substituted C1-6alkyl, optionally substituted aryl, optionally substituted arylC1-6alkyl or R9 and R10 forms C3-7cycloalkyl or heterocyclyl. Further preferably hydrogen or C1-4alkyl. Most preferably hydrogen or methyl. Most preferably both R9 and R10 are methyl.
When R9 and/or R10 is a component of group R18, R9 and R10 are preferably independently selected from hydrogen, optionally substituted C1-6alkyl, optionally substituted aryl, optionally substituted arylC1-6alkyl or R9 and R10 forms C3-7cycloalkyl or heterocyclyl. Further preferably when R9 is a component of group R18, R9 is preferably heterocyclyl. Most preferably pyrrolidinyl, 7-azabicyclo[2.2.1]hept-7-yl or. 3-azabicyclo[3.2.2]nonyl.
Preferably R17 is hydrogen, hydroxy, cyano or is absent. Most preferably R17 is absent.
Preferably R18 is selected from hydrogen, R9N(R10)C(O)—, R9C(O)—, R9OC(O) or R18a—C(R9R10)— wherein R18a is R9N(R10)C(O)—. Further preferably R9C(O)—. Most preferably R9C(O)— wherein R9 is heterocyclyl.
Preferably A is selected from a direct bond, optionally substituted C1-5alkylene, carbonyl or —C(O)—C(RdRd)—, wherein Rd is independently selected from a direct bond hydrogen and C1-2alkyl. Further preferably A is selected from C1-5alkylene optionally substituted with C1-4alkyl, carbonyl or carbonylmethyl. Yet further preferably A is a direct bond methylene. Most preferably methylene.
Preferably B is selected from optionally substituted C1-6alkylene, optionally substituted C3-6alkenylene, —(C1-5alkyl)aa-O—(C1-5alkyl)bb, —(C1-5alkyl)aa-C(O)—(C1-5alkyl)bb-, —(CH2)s1—C(O)N(R9)—(CH2)s2—, or the group




forms an optionally substituted C4-7 heterocyclic ring, wherein aa and bb are independently 0 to 1 and, wherein the combined length of (C1-5alkyl)aa and (C1-5alkyl)bb is less than or equal to C5alkyl.

More preferably B is C1-6alkylene, C3-6alkenylene, —(C1-5alkyl)aa-O—(C1-5alkyl)bb-, —(C1-5alkyl)aa-C(O)—(C1-5alkyl)bb-, —(CH2)s1—C(O)N(R9)—, or the group




forms an optionally substituted saturated C4-7 heterocyclic ring, wherein aa and bb are independently 0 or 1 and wherein the combined length of (C1-5alkyl)aa, (C1-5alkyl)bb is less than or equal to C5alkyl and wherein C1-6alkylene is optionally substituted by hydroxy.

Further preferably B is unsubstituted C1-6alkylene, C3-6alkenylene —(C1-5alkyl)aa-O—(C1-5alkyl)bb-, —(C1-5alkyl)aa-C(O)— or the group




forms an optionally substituted saturated C4-7 heterocyclic ring selected from: azetidinyl, pyrrolidinyl, pyrazolinyl, pyrazolidinyl, imidazolinyl, imidazolidinyl, piperidinyl, piperazinyl, hexahydropyrimidinyl, hexahydropyridazinyl, hexahydrotriazinyl, tetraydrotriazinyl, dihydrotriazinyl, morpholinyl, thiomorpholinyl, thiazinanyl, thiazolidinyl, 1,5-dioxa-9-azaspiro[5.5]undecanyl or octahydropyrrolopyrrolyl, wherein the optional substituents are selected from. cyano, hydroxy, oxo, C1-4alkyl, C1-4alkoxy, C1-4alkanoyl, R9OC(O)(CH2)w—, R9R10NC(O)(CH2)w— or halo, wherein w is an integer between 0 and 4 and R9 and R10 are as defined above. Further preferably the optional substituents are selected from: cyano, hydroxy, oxo, C1-4alkyl, C1-4alkoxy and C1-4alkanoyl, aa and bb are independently 0 or 1, wherein the combined length of (C1-5alkyl)aa and (C1-5alkyl)bb is less than or equal to C5alkyl and wherein C1-6alkylene is optionally substituted by hydroxy.

Yet further preferably B is selected from: methylene, ethylene, propylene, propyl-2-ene, butylene, pentylene, 2-propenyl, propoxy, ethoxyethyl, methylcarbonyl or methylcarbonylamino.
or the group




forms an C4-7 heterocyclic ring selected from: pyrrolidinyl, piperidinyl, or piperazinyl, wherein the optional substituents are selected from oxo.

Most preferably B is selected from ethylene or butylene.
In another embodiment of the invention preferably B is selected from optionally substituted C1-6alkylene or the group




forms a C5-7 heterocyclic ring. Preferably unsubstituted C-6alkylene or a C5-7 heterocyclic saturated ring. Most preferably methylene, ethylene, propylene, butylene or piperazinyl.

Peferably G is a direct bond, —O— or —C(R9R10)—. More preferably —C(R9R10)—. Most preferably —C(CH3)2—.
Preferably M is —CH2—O—.
When R3 is selected from a group of Formula (IIc) or Formula (IId) then the group




preferably forms an optionally substituted heterocyclic ring containing 4-7 carbons atoms.

More preferably the group




forms an optionally substituted saturated C4-7 heteocyclic ring.

Further preferably the group




forms an optionally substituted saturated C4-7 heteocyclic ring selected from: azetidinyl, pyrrolidinyl, pyrazolinyl, pyrazolidinyl, imidazolinyl, imidazolidinyl, piperidinyl, piperazinyl, hexahydropyrimidinyl, hexahydropyridazinyl, hexahydrotriazinyl, tetraydrotriazinyl, dihydrotriazinyl, morpholinyl, thiomorpholinyl, thiazinanyl, thiazolidinyl or octahydropyrrolopyrrolyl, wherein the optional substituents are selected from oxo.

Further preferably the group




forms an optionally substituted saturated C4-7 heteocyclic ring selected from: pyrrolidinyl, piperidinyl or piperazinyl, wherein the optional substituents are selected from oxo.

Most preferably the group




forms an optionally substituted saturated C4-7 heteocyclic ring selected from: piperazinyl.

Preferably K is selected from: —(CH2)s—, —(CH2)s—O—(CH2)s—, —(CH2)s—C(O)—(CH2)s—, —(CH2)s—N(R18)—(CH2)s—, —(CH2)s—C(O)N(R18)—(CH2)—, —(CH2)s—N(R18)C(O)—(CH2)s—, —(CH2)s—S(O)2N(R18)—(CH2)s—, or —(CH2)s—NHS(O)2—(CH2)s—, wherein s is independently selected from 0, 1, 2, 3 or 4, R18 is selected from hydrogen or C1-4alkyl (preferably hydrogen) and the —(CH2)s— group is optionally substituted by hydroxy or C1-4alkyl.
More preferably K is selected from: —(CH2)s—, —(CH2), —O—(CH2)s—, —(CH2)s—C(O)—, —C(O)(CH2)s—, —(CH2)s—N(R8)—, —(CH2)s—C(O)N(R18)—, —(CH2)s—N(R18)C(O)—(CH2)s—, —(CH2)s—S(O)2N(R18)— or —(CH2)s—NHS(O)2—, wherein s is independently selected from 0, 1, 2, 3 or 4, R18 is selected from hydrogen or C1-4alkyl (preferably hydrogen or methyl) and the —(CH2)s— group is optionally substituted by hydroxy or C1-4alkyl.
More preferably K is selected from: methylene, ethylene, propylene, butylene, oxy, 2-hydroxypropylene, carbonyl, methylcarbonyl, ethylcarbonyl, (methyl)methylcarbonyl, (ethyl)methylcarbonyl, carbonylmethylene, carbonylethylene, ethoxyethylene, amino, 2-hydroxypropylamino, carbonylamino, methylcarbonylamino, N-methyl-methylcarbonylamino, aminocarbonyl, methylaminocarbonyl, methylaminocarbonylmethyl, propylsulphonylamino or methylaminosulphonyl.
Further preferably K is selected from: methylene, ethylene, propylene, butylene carbonyl, methylcarbonyl or N-methylmethylcarbonylamino.
Most preferably K is selected from: methylcarbonyl and N-methylmehtylcarbonylamino.
Preferably optional substituents on heterocyclyl groups in R8, R9, R10, R18 and R19 or on heterocyclyl groups formed when R17 and R18 together form a heterocyclic ring are selected from: optionally substituted C1-6alkyl, C1-6alkoxy, C1-6alkanoyl, optionally substituted C2-6alkenyl, cyano, nitro, C1-3perfluoroalkyl, C1-3perfluoroalkoxy, optionally substituted aryl, optionally substituted arylC1-6alkyl, R9O(CH2)p—, R9C(O)O(CH2)w—, R9OC(O)(CH2)w—, R16S(On)(CH2)w—, R9R10NC(O)(CH2)w— or halo; wherein w is an integer between 0 and 4 and p, R9, R10 and R16 are as defined above.
More preferably optional substituents on R8 are selected from: cyano, hydroxy, oxo, nitro, halo, trifluromethyl, C1-4alkyl, C1-4alkoxy, C1-4alkanoyl, R9OC(O)(CH2)w—, R9R10N(CH2)w—, R9R10NC(O)(CH2)w—, R9R10NC(O)(CH2)w—, R9R10NC(O)N(R9)(CH2)w—, R9OC(O)N(R9)(CH2)w—, or halo, wherein w is an integer between 0 and 4 and R9 and R10 are selected from: hydrogen, C1-4alkyl, C1-4alkylsulphonyl and C3-7carbocyclyl.
Further preferably optional substituents on R8 are selected from: cyano, hydroxy, oxo, amino, N,N-diC1-4alkyamino, N,N-diC1-4alkyaminoC1-4alkyl, N′—C1-4alkylureido, N—C1-4alkylsulphonylamino, N,N-di-C1-4alkylsulphonylamino, nitro, halo, trifluoromethyl, C1-4alkyl, C1-4alkoxy, C1-4alkanoyl, C1-4alkoxycarbonylamino and C3-7carbocyclylcarbonylamino.
More preferably optional substituents on R8 are selected from: cyano, oxo, methyl, t-butyl, methoxy, acetyl, amino, N,N-diethylamino, N′-isopropylureido, N′-cyclohexylureido, N-methylsulphonylamino, N,N-dimethylsulphonylamino, nitro, chloro, fluoro, trifluoromethyl, isopropoxycarbonylamino and cyclopentylcarbonylamino.
Most preferably optional substituents on R8 are selected from: methoxy, fluoro, methylsulphonylamino and isopropoxycarbonylamino.
In a further embodiment of the invention optional substituents on R8 are selected from: C1-4alkoxy, fluoro, C1-4alkylsulphonylamino, C1-4alkanoylamino, C1-4alkylureido and C1-4alkoxycarbonylamino.
In a further embodiment of the invention when R8 is phenyl then R8 is preferably substituted and when R8 is a heterocyclic ring R8 is preferably unsubstituted.
Preferably the optional substituents on alkyl, alkenyl, alkyl, cycloalkyl and aryl groups are independently selected from C1-6alkyl, C1-6alkoxy, C3-7cycloalkyl, optionally substituted aryl, optionally substituted arylC1-6alkyl, hydroxy, oxo, cyano, C1-6alkoxy, halo (preferably fluoro), R16S(On)(CH2)w—, R9OC(O)—, optionally substituted arylC1-3alkoxy wherein R9 is as defined above.
Preferably the optional substituents on optionally substituted aryl and arylC1-6alkyl groups are selected from: optionally substituted C1-6alkyl, optionally substituted C2-6alkenyl, cyano, nitro, halo (preferably fluoro), C1-3perfluoroalkyl, C1-3perfluoroalkoxy, optionally substituted aryl, optionally substituted arylC1-6alkyl, R9O(CH2)p—, R9C(O)O(CH2)w—, R9OC(O)(CH2)w—, R16S(On)(CH2)w—, R9R10NC(O)(CH2)w— or halo; wherein w is an integer between 0 and 4 and n, R9 and R10 are as defined above.
In preferences for heterocyclyl in R8 the nitrogen atoms contained in R8 heteroaromatic rings exist either as drawn or, where chemically allowed, in their oxidised (N→O, N—OH) state.
Where optional substitution is mentioned at various places the optional substituents also comprise the following definition which refers to one, two, three or more optional substituents. Unless otherwise indicated above (i.e., where a list of optional substituents is specifically listed within a definition), each substituent can be independently selected from C1-8alkyl (eg, C2-6alkyl, and most preferably methyl, ethyl or tert-butyl); C3-8cycloalkoxy, preferably cyclopropoxy, cyclobutoxy or cyclopentoxy; C1-6alkoxy, preferably methoxy or C2-4alkoxy; halo, preferably Cl or F; Hal3C—, Hal2CH2—, HalCH2—, Hal3CO—, Hal2CHO or Hal CH2O, wherein Hal represents halo (preferably F); RgCH2O—, RhC(O)NR)—, RhSO2N(R)— or Rg—RhN—, wherein Rg and Rh independently represent hydrogen or C1-8alkyl (preferably methyl or C2-6alkyl or C2-4alkyl), or Rg—RhN— represents an optionally substituted C3-8, preferably C3-6, heterocyclic ring optionally containing from 1 to 3 further heteroatoms independently selected from O, N and S; hydrogen; or RkC(O)O— or RkC(O)—, Rk representing hydrogen, optionally substituted phenyl or C1-6alkyl (preferably methyl, ethyl, iso-propyl or tert-butyl). For optional substitution of the heterocyclic ring represented by Rg—RhN—, at least one (eg, one, two or three) substituents may be provided independently selected from C1-6alkyl (eg, C2-4alkyl, more preferably methyl); phenyl; CF3O—; F2CHO—; C1-8alkoxy, preferably methoxy, ethoxy or C3-6alkoxy; C1-8alkoxyC(O), preferably methoxycarbonyl, ethoxycarbonyl, tert-butoxycarbonyl or C3-6alkoxyC(O); phenoxycarbonyl; phenoxy; C1-8alkanoyl, preferably acetyl, ethanoyl or C3-6alkyanoyl; carboxy; C1-8alkylS(Onn) wherein nn is an integer between 0 and 2, preferably methylthio, ethylthio, C3-6alkylthio, methylsulphinyl, ethylsulphinyl, C3-6alkylsulphinyl, methylsulphonyl, ethylsulphonyl or C3-6alkylsulphonyl; hydroxy; halo (eg, F, Cl or Br); RmRnN— where Rm and Rn are independently hydrogen or C1-6alkyl (preferably C2-4alkyl, more preferably methyl, most preferably Rm═Rn=methyl); and nitro.
According to a further aspect of the invention there is provided a compound of Formula (Ib)




wherein:

    
    
        R1 represents hydrogen or unsubstituted C1-6alkyl;
        R2 represents optionally substituted phenyl;
        R3 is selected from a group of Formula (IIa) to Formula (IId):
    
    






    
    
        R5 is selected from a one of a group of Formula III-a to III-l:
    
    






    
    
        wherein:
        
            het represents an optionally substituted 3- to 8-membered heterocyclic ring containing from 1 to 4 heteroatoms independently selected from O, N and S;
            R23 and R23a are independently selected from:
            
                (i) hydrogen or optionally substituted C1-8alkyl; or
                (ii) R23 and R23a together with the carbon to which they are attached form an optionally substituted 3 to 7-membered cycloalkyl ring;
            
            
            R24 and R25 are selected from:
            
                (i) R24 selected from hydrogen; optionally substituted C1-8alkyl; optionally substituted aryl; —Rd—Ar, where Rd represents C1-8alkylene and Ar represents optionally substituted aryl; and optionally substituted 3- to 8-membered heterocyclic ring optionally containing from 1 to 3 further heteroatoms independently selected from O, N and S; and R25 is selected from hydrogen; optionally substituted C1-8alkyl and optionally substituted aryl;
                (ii) wherein the group of Formula (III) represents a group of Formula III-a, III-b or III-i, then the group NR24(—R25) represents an optionally substituted 3- to 8-membered heterocyclic ring optionally containing from 1 to 3 further heteroatoms independently selected from O, N and S; or
                (iii) wherein the group of Formula (III) represents structure III-e,
            
            
        
        
    
    






    
    
        
        
            
            
                 represents an optionally substituted 3- to 8-membered heterocyclic ring optionally containing from 1 to 4 heteroatoms independently selected from O, N and S;
            
            
        
        
        R6 and R6a are independently selected from hydrogen, fluoro or optionally substituted C1-6alkyl.
        R7 is selected from: hydrogen or C1-4alkyl;
        R8 is selected from
        
            (i) hydrogen, C1-6alkyl, C2-6alkenyl, haloC1-6alkyl, hydroxy, cyano, C1-6alkylS(On)—, —O—Rb, C1-4alkoxyC1-4alkyl, —C(O)—Rb, C(O)O—Rb, —NH—C(O)—Rb, N,N-di-C1-4alkylamino or —S(On)NRbRc where Rb and Rc are independently selected from hydrogen and C1-6alkyl, and n is 0, 1 or 2;
            (ii) -aryl, optionally substituted by up to 4 substituents selected from R12, R13 and R14;
            (iii) C4-7 heterocyclyl, optionally substituted by up to 4 substituents selected from R12, R13 and R14; or
            (iv) C3-7carbocyclyl, optionally substituted by up to 4 substituents selected from R12, R13 and R14;
        
        
        R9 and R10 are independently selected from: hydrogen, hydroxy, optionally substituted C1-6alkyl, optionally substituted aryl, optionally substituted arylC1-6alkyl, an optionally substituted carbocyclic ring of 3-7 atoms, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl or R9 and R10 taken together can form an optionally substituted ring of 3-9 atoms or R9 and R10 taken together with the carbon atom to which they are attached form a carbonyl group;
        R12 is selected from: hydrogen, hydroxy, R17R18N(CH2)cc—, R17R18NC(O)(CH2)cc—, optionally substituted C1-6alkyl-C(O)N(R9)(CH2)cc—, optionally substituted C1-6alkyl-SO2N(R9)—, optionally substituted aryl-SO2N(R9)—, C1-3perfluoroalkyl-SO2N(R9)—; optionally substituted C1-6alkyl-N(R9)SO2—, optionally substituted aryl-N(R9SO2—, C1-3perfluoroalkyl-N(R9)SO2— optionally substituted C1-6-alkanoyl-N(R9)SO2—; optionally substituted aryl-C(O)N(R9)SO2—, optionally substituted C1-6alkyl-S(On)—, optionally substituted aryl-S(On)—, C1-3perfluoroalkyl-, C1-3perfluoroalkoxy, optionally substituted C1-6alkoxy, carboxy, halo, nitro or cyano;
        R13 and R14 are independently selected from: hydrogen, hydroxy, oxo, optionally substituted C1-6alkyl, optionally substituted C1-6alkanoyl, optionally substituted C2-6alkenyl, cyano, nitro, C1-3perfluoroalkyl-, C1-3perfluoroalkoxy, optionally substituted aryl, optionally substituted arylC1-6alkyl, R9O(CH2)s—, R9(O)O(CH2)s—, R9OC(O)(CH2)s—, R16S(On)(CH2)s—, R9R10NC(O)(CH2)s— or halo; A is selected from optionally substituted C1-5alkylene, carbonyl or —C(O)—C(RdRd)—, wherein Rd is independently selected from hydrogen and C1-2alkyl;
        R17 is independently selected from: hydrogen, hydroxy, cyano or optionally substituted C1-6alkyl;
        R18 is a group of formula R18a—C(R9R10)0-1— wherein R18a is selected from: R19OC(O)—, R9R10NC(O)—, R9R10N—, R9C(O)—, R9C(O)N(R10)—, R9R10NC(O)—, R9R10NC(O)N(R10)—, R9SO2N(R10)—, R9R10NSO2N(R10)—, R9C(O)O—, R9OC(O)—, R9R10NC(O)O—, R9O—, R9S(On)—, R9R10NS(On)—, hydrogen, optionally substituted C1-6alkyl, optionally substituted heterocyclyl;
        
            or R17 and R18 when taken together form an optionally substituted carbocyclic ring of 3-7 atoms or optionally substituted heterocyclyl;
        
        
        R19 is selected from: hydrogen, optionally substituted C1-6alky, optionally substituted aryl, optionally substituted arylC1-6alkyl, optionally substituted C3-7cycloalkyl, optionally substituted heterocyclyl or optionally substituted heterocyclylC1-6alkyl;
        B is selected from optionally substituted C1-6alkylene or the group
    
    






    
    
         forms an optionally substituted C4-7 heterocyclic ring, wherein the optional substituents are selected from R12, R13 and R14;
        the group
    
    






    
    
         preferably forms an optionally substituted heterocyclic ring containing 4-7 carbons atoms, wherein the optional substituents are selected from R12, R13 and R14;
        K is selected from: a direct bond, —(CH2)s1—, —(CH2)s2—O—(CH2)s—, —(CH2)s1—C(O)—(CH2)s2—, —(CH2)s1—S(On)—(CH2)s2—, —(CH2)s1—N(R18)—(CH2)s2—, —(CH2)s1—C(O)N(R9)—(CH2)s2—, —(CH2)s1—N(R9C(O)(CH2)s2—, —(CH2)s1—N(R9)C(O)N(R9)—(CH2)s2—, —(CH2)s1—OC(O)—(CH2)s2—, —(CH2)s1—C(O)O—(CH2)s2—, —(CH2)s1—N(R9)C(O)O—(CH2)s2—, —(CH2)s1—OC(O)N(R9)(CH2)s2, —(CH2)s1—OS(On)—(CH2)s2—, or —(CH2)s1—S(On)—O—(CH2)s2—, —(CH2)s1—S(O)2N(R9)—(CH2)s2—, —(CH2)s1—N(R9)S(O)2—(CH2)s2—; wherein the —(CH2)s1— and —(CH2)s2— groups are independently optionally substituted by hydroxy, fluoro, cyano, carbamoyl, C1-4alkyl and C1-4alkoxy,
        n is an integer from 0 to 2;
        s1 and s2 are independently selected from an integer from 0 to 4, and s1+s2 is less than or equal to 4;
        or a salt, pro-drug or solvate thereof.
    
    


According to a further aspect of the invention there is provided a compound of Formula (Ic)




    
    
        wherein
        R3 is selected from a group of Formula (IIa) or Formula (IIb):
    
    






and R1, R2, R5, R6, R6a, R7, R8, A, B and M are as defined above;

or salt, solvate or pro-drug thereof.

A further preferred group of compounds of the invention comprises a compound of Formula (Ic), wherein:

    
    
        A is optionally substituted C1-5alkylene;
        B is selected from optionally substituted C1-6alkylene or the group
    
    






    
    
         forms a ring containing C5-7 heterocyclic ring;
        M is —CH2—O—;
        R1 is hydrogen or C1-4alkyl;
        R6 and R6a, are independently selected from hydrogen and optionally substituted C1-4alkyl;
        R7 is selected from: hydrogen or C1-4alkyl;
        R8 is selected from hydrogen, cyano, C1-6alkyl, haloC1-6alkyl, C2-6alkynyl, C1-6alkanoyl, C1-4alkoxyC1-4alkyl, C1-6alkoxycarbonyl, N,N-di-C1-4alkylamino, aryl, arylC1-6alkyl, C3-7cycloalkyl, C3-7cycloalkylC1-6alkyl, heterocyclyl, heterocyclylC1-6alkyl, or heterocyclylcarbonylC1-4alkyl wherein aryl and heterocyclyl rings are optionally substituted by cyano and C1-4alkyl; and
        R2 and R5; are as defined above

or salt, solvate or pro-drug thereof.

    
    


A further preferred group of compounds of the invention comprises a compound of Formula (Ic), wherein:

    
    
        A is optionally substituted C1-5alkylene;
        B is selected from optionally substituted C1-6alkylene or the group
    
    






    
    
         forms a ring containing C5-7 heterocyclic ring;
        R1 is hydrogen or C1-4alkyl, preferably hydrogen;
        R2 is an optionally substituted monocyclic aromatic ring structure, preferably optionally substituted phenyl, most preferably 3,5-dimethylphen-1-yl;
        R5 is a group of Formula (III) wherein the group of Formula (III) is selected from a group of Formula III-a; III-b; III-c; III-d; III-e; III-f, III-g, III-h, III-I, III-j, III-k and III-l;
    
    






    
    
         wherein R23, R23a, R24 and R25 are as defined above, preferably the group of Formula (III) is selected from (III-a), (III-g) and (III-h);
        R6 and R6a, are independently selected from hydrogen and optionally substituted C1-4alkyl;
        R7 is selected from: hydrogen or C1-4alkyl;
        R8 is selected from hydrogen, cyano, C1-6alkyl, haloC1-6alkyl, C2-6alkynyl, C1-6alkanoyl, C1-4alkoxyC1-4alkyl, C1-6alkoxycarbonyl, N,N-di-C1-4alkylamino, aryl, arylC1-6alkyl, C3-7cycloalkyl, C3-7cycloalkylC1-6alkyl, heterocyclyl, heterocyclylC1-6alkyl, or heterocyclylcarbonylC1-4alkyl wherein aryl and heterocyclyl rings are optionally substituted by cyano and C1-4alkyl; and
        R2, and R5; are as defined above

or salt, solvate or pro-drug thereof.

    
    


A further preferred group of compounds of the invention comprises a compound of Formula (Id):




    
    
        Wherein R1, R2, R5; R7, R8, A, B and M are as defined above

or salt, solvate or pro-drug thereof.

    
    


A yet further preferred group of compounds of the invention comprises a compound of Formula (Ib), (Ic) or (Id) wherein:

    
    
        R5 is a group of Formula (III) wherein the group of Formula (III) is a group of formula IIIa:
    
    






    
    
        wherein R23, R23a, R24 and R25 are as defined above;

or a salt, pro-drug or solvate thereof.

    
    


According to a further aspect of the invention there is provided a compound of Formula (I) or Formula (Ia), or salt, solvate or pro-drug thereof, wherein R3 is selected from a group of Formula (IIc) or Formula (IId) and R1, R2 and R5 are as defined above.
According to a further aspect of the invention there is provided a compound of Formula (I) or Formula (Ia), or salt, solvate or pro-drug thereof, wherein R3 is selected from a group of Formula (IIe) or Formula (IIf) and R1, R2 and R5 are as defined above.
According to a further aspect of the invention there is provided a compound of Formula (I) or Formula (Ia), or salt, solvate or pro-drug thereof, wherein R3 is selected from a group of Formula (IIa), Formula (IIc) or Formula (IIe) and R1, R2 and R5 are as defined above.
According to a further aspect of the invention there is provided a compound of Formula (I) or Formula (Ia), or salt, solvate or prodrug thereof, wherein R3 is selected from a group of Formula (IIb), Formula (IId) or Formula (IIf) and R1, R2 and R5 are as defined above.
Particularly preferred compounds according to the present invention are wherein the compound is selected from:

    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-pyrid-4-ylethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-pyrid-4-ylbutyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[4-(4-methoxyphenyl)butyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-phenylethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(43-trifluoromethylphenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-fluorophenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(3-fluorophenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(3-methoxyphenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-methoxyphenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(3,4-difluorophenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-isopropylureidophenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-{cyclopentylcarbonylamino}phenyl)ethyl]-(2S)-propylamine;
    [2-(4-methylsulphonylaminophenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-{isopropoxycarbonylamino}phenyl)ethyl]-(2S)propylamine;
    2-[3-(2,2-diethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-{cyclohexylureido}phenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1-methyl-2-oxo-1,2-dihydroquinolin-6-yl)ethyl]-(2S)propylamine;
    3-[2,2-dimethyl-3-oxo-3-(azabicyclo[2.2.2]oct-2-yl)propoxy]-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(3-methoxyphenyl)ethyl]-(2S)-propylamine; and
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.2]oct-2-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine;

or a salt, pro-drug or solvate thereof.



More particularly preferred compounds according to the present invention are wherein the compound is selected from:

    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-pyrid-4-ylethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-pyrid-4-ylbutyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[4-(4-methoxyphenyl)butyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(43-trifluoromethylphenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-fluorophenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(3-methoxyphenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-methoxyphenyl)ethyl]-(2S)-propylamine;
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-methylsulphonylaminophenyl)ethyl]-(2S)-propylamine; and
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.2]oct-2-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)propylamine;

or a salt, pro-drug or solvate thereof.



Most preferred compounds according to the present invention are wherein the compound is selected from:

    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine; and
    2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.2]oct-2-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine;

or a salt, pro-drug or solvate thereof.



In another embodiment of the invention preferred compounds according to the present invention are wherein the compound is selected from:

    2-[3-(2,2-dimethyl-3-oxo-3-pyrrolidin-1-ylpropoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-(2-pyridin-4-ylethyl)ethanamine;
    2-[3-(2,2-dimethyl-3-oxo-3-pyrrolidin-1-ylpropoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-(2-pyridin-4-ylbutyl)ethanamine;
    2-[3-(2,2-dimethyl-3-oxo-3-(7-azabicyclo[2.2.1]hept-7-yl)propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-(2-pyridin-4-ylethyl)ethanamine; and
    2-[3-(2,2-dimethyl-3-oxo-3-(7-azabicyclo[2.2.1]hept-7-yl)propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-(2-pyridin-4-ylbutyl)ethanamine;
    
        or a salt, pro-drug or solvate thereof.
    
    


The compounds of Formula (I) may be administered in the form of a pro-drug which is broken down in the human or animal body to give a compound of the Formula (I). Examples of pro-drugs include in-vivo hydrolysable esters of a compound of the Formula (I). Various forms of pro-drugs are known in the art. For examples of such pro-drug derivatives, see:

    a) Design of Prodrugs, edited by H. Bundgaard, (Elsevier, 1985) and Methods in Enzymology, Vol. 42, p. 309-396, edited by K Widder, et al. (Academic Press, 1985);
    b) A Textbook of Drug Design and Development, edited by Krogsgaard-Larsen and H. Bundgaard, Chapter 5 “Design and Application of Prodrugs”, by He Bundgaard p. 113-191 (1991);
    c) H. Bundgaard, Advanced Drug Delivery Reviews, 8, 1-38 (1992);
    d) H. Bundgaard, et al., Journal of Pharmaceutical Sciences, 77, 285 (1988); and
    e) N. Kakeya, et al., Chem Pharm Bull, 32, 692 (1984).


An in-vivo hydrolysable ester of a compound of the Formula (I) containing a carboxy or a hydroxy group is, for example, a pharmaceutically-acceptable ester which is hydrolysed in the human or animal body to produce the parent acid or alcohol. Suitable pharmaceutically-acceptable esters for carboxy include C1-6alkoxymethyl esters for example methoxymethyl, C1-6alkanoyloxymethyl esters for example pivaloyloxymethyl, phthalidyl esters, C3-8cycloalkoxycarbonyloxyC1-6alkyl esters for example 1-cyclohexylcarbonyloxyethyl; 1,3-dioxolen-2-onylmethyl esters, for example 5-methyl-1,3-dioxolen-2-onylmethyl; and C1-6alkoxycarbonyloxyethyl esters.
An in-vivo hydrolysable ester of a compound of the Formula (I) containing a hydroxy group includes inorganic esters such as phosphate esters (including phosphoramidic cyclic esters) and α-acyloxyalkyl ethers and related compounds which as a result of the in-vivo hydrolysis of the ester breakdown to give the parent hydroxy group/s. Examples of α-acyloxyalkyl ethers include acetoxymethoxy and 2,2-dimethylpropionyloxy-methoxy. A selection of in-vivo hydrolysable ester forming groups for hydroxy include alkanoyl, benzoyl, phenylacetyl and substituted benzoyl and phenylacetyl, alkoxycarbonyl (to give alkyl carbonate esters), dialkylcarbamoyl and N-(dialkylaminoethyl)-N-alkylcarbamoyl (to give carbamates), dialkylaminoacetyl and carboxyacetyl.
A suitable pharmaceutically-acceptable salt of a compound of the invention is, for example, an acid-addition salt of a compound of the invention which is sufficiently basic, for example, an acid-addition salt with, for example, an inorganic or organic acid, for example hydrochloric, hydrobromic, sulphuric, phosphoric, trifluoroacetic, citric or maleic acid. In addition a suitable pharmaceutically-acceptable salt of a compound of the invention which is sufficiently acidic is an alkali metal salt, for example a sodium or potassium salt, an alkaline earth metal salt, for example a calcium or magnesium salt, an ammonium salt or a salt with an organic base which affords a physiologically-acceptable cation, for example a salt with methylamine, dimethylamine, trimethylamine, piperidine, morpholine or tris-(2-hydroxyethyl)amine.
The compounds of Formula (I) can be prepared by a process comprising a step selected from (a) to (h) as follows, these processes are provided as a further feature of the invention:—

    (a) Reaction of a compound of formula XXXII with a compound of formula L2-R5′ to form a compound of Formula (I),






     wherein X1 is selected from






     L1 is a displaceable group; and
     H—R5′ is selected from:






    (b) Reaction of a compound of formula XXXIII with a compound of formula H—R5′′ to form a compound of Formula (I),






     wherein X2 is selected from:






     L2 is a displaceable group and R7a is selected from the definition of R7 or R22 above, and
     L2-R5′′ is selected from: L2-B—R8, L2-J-K—R8 and L2-R21 
    (c) For compounds of Formula (I) wherein R3 is a group of Formula (IIa), (IIb), (IIc) or (IId) and R7 is other than part of a heterocyclic ring or hydrogen, reaction of a compound of Formula (I) wherein R3 is a group of Formula (IIa), (IIb), (IIc) or (IId) and R7 is hydrogen with a group of formula L3-R7a, wherein R7a is as defined above for R7 with the exclusion of hydrogen and L3 is a displaceable group;
    (d) For compounds of Formula (I) wherein R3 is a group of Formula (IIe) or (IIf) and R21 is other than hydrogen, reaction of a compound of Formula (I) wherein R3 is a group of Formula (IIe) or (IIf) and R21 is hydrogen with a group of formula L4-R21a, wherein R21a is as defined above for R21 with the exclusion of hydrogen and L4 is a displaceable group;
    (e) For compounds of Formula (I) wherein R3 is a group of Formula (IIe) or (IIf) and R22 is other than hydrogen, reaction of a compound of Formula (I) wherein R3 is a group of Formula (IIe) or (IIf) and R22 is hydrogen with a group of formula L5-R22a, wherein R22a is as defined above for R22 with the exclusion of hydrogen and L5 is a displaceable group;
    (f) For compounds of Formula (I) wherein R3 is a group of Formula (IIc) or (IId) and the group






     together forms an optionally substituted nitrogen-containing heterocyclic ring containing 47 carbons atoms, reaction of a compound of Formula XXXIVa or XXXIVb, with a compound of Formula L6-K—R8, wherein L6 is a displaceable group






    (g) For compounds of Formula (I) wherein R3 is a group of Formula (IIc) or (IId), reaction of a compound of Formula XXXVa or XXXVb, with a compound of Formula L7-K′′—R8, wherein L7 is a displaceable group, and wherein the groups K′ and K′′ comprise groups which when reacted together form K,






    (h) reaction of a compound of Formula XXXVI with an electrophillic compound of the formula L8-R5, wherein L8 is a displaceable group






and thereafter if necessary:

    i) converting a compound of the Formula (I) into another compound of the Formula (I);
    ii) removing any protecting groups;
    iii) forming a salt, pro-drug or solvate.


Specific reaction conditions for the above reations are as follows:
Process a) Compounds of formula XXXII and H—R5′ can be coupled together in the presence of an organic base (such as DIPEA [di-isopropylethylamine]) or an inorganic base (such as potassium carbonate) base, in a suitable solvent such as DMA or DMF, at a temperature from room temperature and 120° C. Suitable displaceable groups include: a halide, such as chloro, or a methane sulphonate or toluene sulphonate;

Process b) Compounds of XXXIII and L2-R5′′ can be coupled together in the presence of an organic base (such as DIPEA) or an inorganic base (such as potassium carbonate), in a suitable solvent such as DMA or DMF, at a temperature from room temperature to 120° C. Suitable displaceable groups include: a halide, such as chloro, or a methane sulphonate or toluene sulphonate,

alternatively if L2 is a hydroxy group then the L2-R5′′; can be reacted with a compound of formula XXXIII under Mitsunobu reaction conditions;

Process c, d, e and f) Reaction conditions to facilitate these reactions can be using (i) alkylation reaction conditions or (ii) acylation reaction conditions: Examples of said conditions include:

    
    
        (i) alkylation reaction conditions—the presence of an organic base (such as DIPEA) or an inorganic base (such as potassium carbonate), in a suitable solvent such as DMF, DMA, DCM, at a temperature from room temperature to 120° C. Suitable displaceable groups include: a halide, such as chloro, methane sulphonate or toluene sulphonate;
        (ii) acylation reaction conditions—presence of organic base, such as triethylamine, temperature 0° C. to 50-60° C. in a suitable solvent such as DCM. Suitable displaceable groups include an acylchloride or an acid anhydride,

Process g) The skilled man would be familiar with a variety of reaction conditions and values for K′ and K′′, which when reacted together would form the group K, examples of said conditions and values for K′ and K′′ include:

        (i.) For compounds of Formula (I) where K is —(CH2)s1—N(R9)C(O)—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1—N(R9)H with a carboxylic acid for formula HOOC—(CH2)s2—R8 to form the amide. Coupling of amino groups with carboxylic acids are well known in the art and can be facilitated by a number of chemical reactions using an appropriate coupling reagent. For example a carbodiimide coupling reaction can be performed with EDCl in the presence of DMAP in a suitable solvent such as DCM, chloroform or DMF at room temperature;
        (ii.) For compounds of Formula (I) where K is —(CH2)s1—C(O)N(R9)—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1—COOH with an amine of the HN(R9)—(CH2)s2—R8 to form the amide. Methodology is identical to processes described in (i) above in this section;
        (iii.) For compounds of Formula (I) where K is —(CH2)s1—N(R9)C(O)O—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1—N(R9)H with a chloroformate of formula ClC(O)O—(CH2)s2R8 in a suitable solvent, such as DCM or chloroform, in the presence of a base, such as N-methylmorpholine, pyridine or triethylamine, at a temperature between −10° C. and 0° C.;
        (iv.) For compounds of Formula (I) where K is —(CH2)s1—OC(O)N(R9—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1—OC(O)Cl with a compound of formula HN(R9)—(CH2)s2—R8. Methodology is identical to processes described in (iii) above in this section;
        (v.) For compounds of Formula (I) where K is —(CH2)s1—N(R9)S(O2)—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1—N(R9)H with a sulphonyl chloride of formula ClS(O2)—(CH2)s2—R8 in the presence of a base, such as triethylamine or pyridine, in a suitable solvent such as chloroform or DCM at a temperature between 0° C. and room temperature;
        (vi.) For compounds of Formula (I) where K is —(CH2)s1—S(O2)N(R9)—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1—S(O2)Cl with a compound of HN(R9)—(CH2)s2—R8. Methodology is identical to processes described in (v) above in this section
        (vii.) For compounds of Formula (I) where K is —(CH2)s1—N(R9)—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1-L11 with a compound of formula HN(R9)—(CH2)s2—R8, wherein L11 is a displaceable group. This reaction can be performed in the presence of an organic base (such as DIPEA) or an inorganic base (such as potassium carbonate), in a suitable solvent such as DMA or DMF, at a temperature from room temperature to 120° C. Suitable displaceable groups include: a halide, such as chloro, or a methane sulphonate or toluene sulphonate. Compounds can also be prepared by reacting a compound wherein K′ is —(CH2)s1—N(R9)H with a compound of formula L11-(CH2)s2—R8, under identical conditions.
        (viii.) For compounds of Formula (I) where K is —(CH2)s1—O—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1—OH with a compound of formula L12-(CH2)s2—R8, wherein L12 is a displaceable group. This reaction can be performed in the presence of an organic base (such as potassium t-butoxide) or an inorganic base (such as sodium hydride), in a suitable solvent such as DMA or DMF, at a temperature from room temperature and 120° C. Suitable displaceable groups include: a halide, such as bromo, or a methane sulphonate or toluene sulphonate. Compounds can also be prepared by reacting a compound wherein K′ is —(CH2)s1-L12 with a compound of formula HO—(CH2)s2—R8, under identical conditions.
        (ix.) For compounds of Formula (I) where K is —(CH2)s1—C(O)—(CH2)s2— these can be prepared by reacting a compound where K′ is —(CH2)s1—C(O)-L13 with a Grignard reagent of formula BrMg(CH2)s2—R8, wherein L13 is a displaceable group. This reaction can be performed in a non-polar solvent such as THF or diethylether at a temperature between room temperature and the boiling point of the solvent. Suitable displaceable groups include: a halide, such as bromo, or a methane sulphonate or toluene sulphonate. Compounds can also be prepared by reacting a compound wherein K′ is —(CH2)s1—MgBr with a compound of formula L13-C(O)—(CH2)s2—R8, under identical conditions.
    
    


Process h) reaction of a compound of Formula XXXVI with a compound of the formula L8-R5, can be performed under Friedel Craft conditions, for example in the presence of diethylaluminium chloride in a suitable solvent, such as DCM, in an inert atmosphere such as nitrogen, at a temperature between room temperature and the boiling point of the solvent or under Mannich conditions, for example, formaldehyde and a primary or secondary amine in acetic acid, in an inert atmosphere such as nitrogen at a temperature between room temperature and 100° C. It will be appreciated by those skilled in the art that in the processes of the present invention certain functional groups such as hydroxyl or amino groups in the starting reagents or intermediate compounds may need to be protected by protecting groups. Thus, the preparation of the compounds of Formula (I) may involve, at an appropriate stage, the addition and subsequent removal of one or more protecting groups.
The protection and de-protection of functional groups is described in ‘Protective Groups in Organic Chemistry’, edited by J. W. F. McOmie, Plenum Press (1973) and ‘Protective Groups in Organic Synthesis’, 2nd edition, T. W. Greene and P. G. M. Wuts, Wiley-Interscience (1991).
A suitable protecting group for an amino or alkylamino group is, for example, an acyl group, for example an alkanoyl group such as acetyl, an alkoxycarbonyl group, for example a methoxycarbonyl, ethoxycarbonyl or tert-butoxycarbonyl group, an arylmethoxycarbonyl group, for example benzyloxycarbonyl, or an aroyl group, for example benzoyl. The de-protection conditions for the above protecting groups necessarily vary with the choice of protecting group. Thus, for example, an acyl group such as an alkanoyl or alkoxycarbonyl group or an aroyl group may be removed for example, by hydrolysis with a suitable base such as an alkali metal hydroxide, for example lithium or sodium hydroxide. Alternatively an acyl group such as a tert-butoxycarbonyl group may be removed, for example, by treatment with a suitable acid as hydrochloric, sulphuric or phosphoric acid or trifluoroacetic acid and an arylmethoxycarbonyl group such as a benzyloxycarbonyl group may be removed, for example, by hydrogenation over a catalyst such as palladium-on-carbon, or by treatment with a Lewis acid for example boron tris(trifluoroacetate). A suitable alternative protecting group for a primary amino group is, for example, a phthaloyl group which may be removed by treatment with an alkylamine, for example dimethylaminopropylamine, or with hydrazine.
A suitable protecting group for a hydroxy group is, for example, an acyl group, for example an alkanoyl group such as acetyl, an aroyl group, for example benzoyl, or an arylmethyl group, for example benzyl. The de-protection conditions for the above protecting groups will necessarily vary with the choice of protecting group. Thus, for example, an acyl group such as an alkanoyl or an aroyl group may be removed, for example, by hydrolysis with a suitable base such as an alkali metal hydroxide, for example lithium or sodium hydroxide. Alternatively an arylmethyl group such as a benzyl group may be removed, for example, by hydrogenation over a catalyst such as palladium-on-carbon.
A suitable protecting group for a carboxy group is, for example, an esterifying group, for example a methyl or an ethyl group which may be removed, for example, by hydrolysis with a base such as sodium hydroxide, or for example a tert-butyl group which may be removed, for example, by treatment with an acid, for example an organic acid such as trifluoroacetic acid, or for example a benzyl group which may be removed, for example, by hydrogenation over a catalyst such as palladium-on-carbon.
Experimental
General Reaction Schemes




Pyrazoles, such as 3 can be synthesised in two steps (Scheme a):

    (1) by the reaction of a lactone with the appropriate ester using a Claisen condensation to form a compound of formula 2, under conditions of an inert atmosphere, such as argon, at a temperature of about 0° C. in a suitable solvent such as TBH.
    (2) followed by cyclization of a compound of formula 2 with hydrazine to form the pyrazole 3, at a room temperature in a suitable solvent such as ethanol.






The pyrazole 3 can undergo a selective alkylation reaction with a compound of formula 4, under conditions of an inert atmosphere, such as argon, in the presence of a suitable base, such as potassium carbonate in the a suitable solvent such as DMA at a temperature of about 90° C., to form a compound of formula 5. Then the amine 6 can be prepared from a compound of formula 5 and phthalimide using a Mitsunobu reaction with an activating agent such as diethyldiazocarboxylate (DEAD), diisopropyldiazocarboxylate or the like with triphenylphosphine, tri-butylphosphine and the like, in an inert solvent such as benzene, toluene, tetrahydrofuran or mixtures thereof, followec by deprotection with hydrazine to give the (Scheme b).




A suitable pyrazole 6 can be converted to a compound of formula 10 by incorporation of a suitable protecting group (P) to form a compound of formula 7, followed by a Mitsunobu reaction with a suitable alcohol 8 to form a compound of formula 9, followed by deprotection.


EXAMPLES
The invention will now be illustrated with the following non-limiting Examples in which, unless otherwise stated:
(i) evaporations were carried out by rotary evaporation in vacuo and work-up procedures were carried out after removal of residual solids such as drying agents by filtration;
(ii) operations were carried out at room temperature, that is in the range 18-25° C. and under an atmosphere of an inert gas such as argon or nitrogen;
(iii) yields are given for illustration only and are not necessarily the maximum attainable;
(iv) the structures of the end-products of the Formula (I) were confirmed by nuclear (generally proton) magnetic resonance (NMR) and mass spectral techniques; proton magnetic resonance chemical shift values were measured on the delta scale and peak multiplicities are shown as follows: s, singlet; d, doublet; t, triplet; m, multiplet; br, broad; q, quartet, quin, quintet;
(v) intermediates were not generally fully characterised and purity was assessed by thin layer chromatography (TLC), high-performance liquid chromatography (HPLC), infra-red (IR) or NMR analysis;
(vi) chromatography was performed on silica (Merck Keiselgel: Art.9385);
(vii) isoluteTM refers to silica (SiO2) based columns with irregular particles with an average size of 50 μm with nominal 60 Å porosity [Source: Jones Chromatography, Ltd., Glamorgan, Wales, United Kingdom].
Abbreviations


    boc t-butoxycarbonyl
    DCC 1,3-dicyclohexylcarbodiimide
    DEAD diethylazodicarboxylate
    DMA dimethylacetamide
    DMAP 4-dimethylaminopyridine
    DMSO dimethyl sulphoxide
    DMF dimethylformamide
    DNS 2,4-dinitrobenzenesulphonyl
    EDC 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride
    HOBt 1-hydroxybenzotriazole
    LHMDS lithium bis(trimethylsilyl)amide
    THF tetrahydrofuran


Example 1
2-[3-(2,2-dimethyl-3-oxo-3-pyrrolidin-1-ylpropoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-(2-pyridin-4-ylethyl)ethanamine




A solution of AR1 (123 mg; 0.17 mmol) in CH2Cl2 (3 ml) was treated dropwise with propylamine (140 ul; 1.7 mmol). The mixture was stirred at room temperature for 1 h and then purified directly by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH) to give Example 1 as a beige solid (83 mg).
Yield: 100%
1H NMR spectrum (DMSO d6): 1.27 (s, 6H); 1.75 (m, 4H); 2.3 (s, 6H); 2.55-2.95 (m, 8H); 3.5 (m, 4H); 4.18 (s, 2H); 7.03 (s, 1H); 7.10 (s, 2H); 7.2 (d, 2H); 8.44 (d, 2H), 11.9 (s br, 1H).
MS-ESI: 490 [M+H]+
The starting material AR1 was prepared as follows:—




A solution of methyl 3,5-dimethylbenzoate (25 g; 152 mmol) and butyrolactone (40 ml; 520 mmol) in THF (300 ml) under argon was cooled to 0° C. and treated dropwise with LHMDS (200 ml; 200 mmol; 1M in hexanes). The mixture was stirred and allowed to warm to room temperature overnight. The THF was evaporated. The residue was taken up in Et2O and the organic phase was washed with sat. aq. NaHCO3, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/hexanes (20 to 40% EtOAc) to give an oil which slowly crystallised to give 2 as a white solid (9.2 g). During the chromatography, the starting material methyl 3,5-dimethylbenzoate (12.4 g) was recovered.
Yield: 55% based on recovered methyl 3,5-dimethylbenzoate.
1H NMR spectrum (CDCl3): 2.39 (s, 6H); 2.5 (m, 1H); 2.82 (m, 1H); 4.41 (m, 1H); 4.51 (m, 2H); 7.25 (s, 1H); 7.65 (s, 2H).
MS-ESI: 219 [M+H]+
Compound 2 (7.43 g; 34 mmol) was dissolved in EtOH (200 ml) and hydrazine hydrate (17.2 ml; 354 mmol) was added. The mixture was stirred for 30 min. The solvent was evaporated and the residue was triturated with pentane to give 3 as a white solid (7.05 g).
Yield: 90%
1H NMR spectrum (DMSO d6): 2.32 (s, 6H); 2.58 (t, 2H); 3.50 (t, 2H); 4.8 (br s, 1H); 7.01 (s, 1H); 7.14 (s, 2H); 9.5 (br s, 1H).
MS-ESI: 233 [M+H]+
A mixture of 3 (4.26 g; 18.4 mmol) and 4 (4.51 g; 19.3 mmol) in DMA (40 ml) under argon was treated with K2CO3 (5.07 g; 36.7 mmol). The mixture was stirred and heated at 90° C. for 2 h. The mixture was poured into sat. aq. NaHCO3, extracted with EtOAc and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 100% EtOAc) to give the alcohol 5 as a pale yellow oil (6.56 g).
Yield: 93%
1H NMR spectrum (DMSO d6): 1.30 (s, 6H); 1.8 (m, 4H); 2.33 (s, 6H); 2.55 (m, 2H); 3.32 (m, 2H); 3.5 (m, 4H); 4.17 (s, 2H); 4.62 (t, 1H); 7.04 (s, 1H); 7.16 (s, 2H); 11.9 (br s, 1H).
MS-ESI: 386 [M+H]+
A mixture of 5 (3.85 g; 10 mmol), phthalimide (1.62 g; 11 mmol) and triphenylphosphine (10.5 g; 40 mmol) in THF (100 ml) at 0° C. under argon was treated with DEAD (6.33 ml; 40 mmol). The mixture was stirred at this temperature for 1 h when water was added. The mixture was extracted with Et2O and the organic phase was washed with water, brine and dried over MgSO4.
Evaporation gave a crude solid which, without further purification, was immediately taken up in EtOH (50 ml) and treated with hydrazine hydrate (5 ml; 100 mmol). The mixture was stirred for 1.5 h and then the EtOH was partially evaporated. Addition of CH2Cl2 caused precipitation of phthalhydrazide which was filtered and rinsed with CH2Cl2. The filtrate was evaporated and the residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 8% MeOH) to give 6 as a beige solid (2.34 g).
Yield: 61%
1H NMR spectrum (DMSO d6):1.30 (s, 6H); 1.79 (m, 4H); 2.33 (s, 6H); 2.52 (m, 2H); 2.67 (t, 2H); 3.5 (m, 4H); 4.18 (s, 2H); 7.03 (s, 1H); 7.14 (s, 2H); 8.95 (br s, 1H).
MS-ESI: 385 [M+H]+
A solution of 6 (200 mg; 0.52 mmol) in CH2Cl2 (5 ml) was treated with diisopropylethylamine (135 ul; 0.78 mmol) and cooled to 0° C. A solution of 2,4-dinitrobenzenesulphonyl chloride (153 mg; 0.57 mmol) in CH2Cl2 (1 ml) was added dropwise and the mixture was allowed to warm to room temperature for 30 min. The mixture was purified directly by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH1Cl2 (0 to 50% EtOAc) to give 7 as a cream solid (224 mg).
Yield: 70%
1H NMR spectrum (DMSO d6): 1.24 (s, 6H); 1.75 (m, 4H); 2.29 (s, 6H); 2.57 (m, 2H); 3.11 (m, 2H); 3.5 (m, 4H); 4.15 (s, 2H); 7.0 (s, 1H); 7.03 (s, 2H); 8.14 (d, 1H); 8.56 (q, 1H); 8.6 (br s, 1H); 8.83 (d, 1H).
MS-ESI: 615 [M+H]+
A mixture of 7 (170 mg; 0.27 mmol), 4-(2-hydroxyethyl)-pyridine (38 mg; 0.3 mmol) and triphenylphosphine (283 mg; 1.08 mmol) in THF (10 ml) at 0° C. under argon was treated with DEAD (170 ul; 1.08 mmol). The mixture was allowed to warm to room temperature for 30 min. when water was added. The mixture was extracted with EtOAc and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl, (0 to 100% EtOAc) AR1 as a white solid (123 mg).
Yield: 63%
1H NMR spectrum (DMSO d6): 1.27 (s, 6H); 1.7 (m, 4H); 2.28 (s, 6H); 2.69 (t, 2H); 2.83 (t, 2H); 3.4 (m, 4H); 3.48 (t, 2H); 3.56 (t, 2H); 4.21 (s, 2H); 7.01 (s, 1H); 7.08 (s, 2H); 7.19 (d, 2H); 8.15 (d, 1H); 8.41 (d, 2H); 8.42 (q, 1H); 8.89 (d, 1H).
MS-ESI: 720 [M+H]+
Starting material 4 was prepared as follows:—




A mixture of 8 (14.48 g; 80 mmol) and oxalyl bromide (43.2 g; 200 mmol) containing one drop of DMF was heated at 50° C. for 2 h and then cooled. The excess of oxalyl bromide was evaporated and the residue azeotroped with toluene to give crude 9 which was taken up directly in CH2Cl2 (25 ml) and cooled to 0° C. Diisopropylethylamine (14 ml; 80 mmol) was added followed by a solution of pyrrolidine (3.3 ml; 40 mmol) in CH2Cl2 (30 ml). The mixture was allowed to warm to room temperature overnight and was diluted with CH2Cl2, washed with aq. HCl (2N), aq. NaOH (1N), water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (5 to 10% EtOAc) to give 4 as a white solid (6.5 g).
Yield: 70%
1H NMR spectrum (DMSO d6): 1.39 (s, 6H); 1.9 (m, 4H); 3.57 (m, 4H); 3.62 (s, 2H)
MS-ESI: 235 [M+H]+
Examples 1.1-1.5
The following examples were prepared in a similar manner to Example 1,




the table shows the R group relating to the above structure, the reaction conditions and characteristics for each example, corresponding to the description of the preparation of Example 1 given above:—

Example 1.1
















R
AR2 mg; mmol
CH2Cl2 ml
Propylamine μl; mmol
Prod. Form
Mass mg; Yield
MS-ESI











210; 0.28
5
235; 2.86
White solid
111; 77%
504 [M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.27(s, 6H); 1.75(m, 4H); 2.31(s, 6H); 2.57-2.63(m, 6H); 2.75(m, 2H); 3.3-3.7(m, 4H); 4.18(s, 2H); 7.03(s, 1H); 7.11(s, 2H); 7.2(d, 2H); 8.44(d, 2H); 11.9(s br, 1H).






Example 1.2
















R
AR3 mg; mmol
CH2Cl2 ml
Propylamine μl; mmol
Prod. Form
Mass mg; Yield
MS-ESI











120; 0.16
3
135; 163
White solid
60; 73%
504 [M + H]+





Chromato.-Ammonia in MeOH(7 N)/(CH2Cl2 (0 to 10% ammonia in MeOH)


1H NMR spectrum (DMSO d6); 1.27(s, 6H); 1.6-1.9(m, 6H); 2.3(s, 6H); 2.55-2.64(m, 6H); 2.7(m, 2H); 3.3-3.6(m, 4H); 4.17(s, 2H); 7.02(s, 1H); 7.12(s, 2H); 7.29(dd, 1H); 7.58(d, 1H); 8.39(d, 1H); 11.9(s br, 1H).






Examples 1.3-1.5 were prepared by a robot. The last two steps were carried out sequentially without isolation of the intermediates AR4, AR5 or AR6.
Example 1.3
















R
AR4 mg; mmol
CH2Cl2 ml
Ammonia in MeOH(7 N) ml
Prod. Form
Mass mg; Yield
MS-ESI











nd*; 0.23
5
0.5
oil
18; 15%
514 [M + H]+





Chromato.-LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (0 to 100% H2O)


1H NMR spectrum (DMSO d6): 1.26(s, 6H); 1.74(m, 4H); 2.3(s, 6H); 2.55-2.8(m, 8H); 3.4(m, 4H); 4.16(s, 2H); 7.02(s, 1H); 7.10(s, 2H); 7.36(d, 2H); 7.71(d, 2H); 11.9(s br, 1H).






Example 1.4
















R
AR5 mg; mmol
CH2Cl2 ml
Ammonia in MeOH(7 N) ml
Prod. Form
Mass mg; Yield
MS-ESI











nd*; 0.23
5
0.5
oil
15; 12%
519 [M + H]+





Chromato.-LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (0 to 100% H2O)


1H NMR spectrum (DMSO d6): 1.27(s, 6H); 1.74(m, 4H); 2.30(s, 6H); 2.5-2.75(m, 8H); 3.5(m, 4H); 3.71(s, 3H); 4.16(s, 2H); 6.81(d, 2H); 7.02(s, 1H); 7.05(d, 2H); 7.11(s, 2H); 11.9(s br, 1H).






Example 1.5
















R
AR6 mg; mmol
CH2Cl2 ml
Ammonia in MeOH(7 N) ml
Prod. Form
Mass mg; Yield
MS-ESI











nd*; 0.23
5
0.5
oil
23; 18%
549[M + H]+





*nd = not determined


Chromato.-LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (0 to 100% H2O)


1H NMR spectrum (DMSO d6): 1.27(s, 6H); 1.77(m, 4H); 2.3(s, 6H); 2.55-2.7(m, 8H); 3.5(m, 4H); 3.68(s, 3H); 3.9(t, 2H); 4.16(s, 2H); 6.81(m, 4H); 7.01(s, 1H); 7.12(s, 2H); 11.9(s br, 1H).






Intermediates for Examples 1-1-1.5, AR2-AR6 Respectively

Starting materials AR2-AR6 were prepared as follows, the table showing the reaction conditions and characteristics for each example, corresponding to the description of AR1 given above:—














AR2
















7 mg;
Alcohol
PPh3
THF






R
mmol
mg; mmol
mg; mmol
ml
DEAD μl; mmol
Prod. Form
Mass mg; Yield %
MS-ESI









200; 0.32
55; 0.4
340; 1.3
10
205; 1.3
Yellow solid
216; 90%
734 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)


1H NMR spectrum (DMSO d6): 1.22(s, 6H); 1.6-1.8(m, 4H); 1.84(m, 2H); 2.28(s, 6H); 2.55(m, 2H); 2.69(m, 2H); 3.3-3.5(m, 8H); 4.18(s, 2H); 7.00(s, 1H); 7.07(s, 2H); 7.19(d, 2H); 8.17(d, 1H); 8.43(d, 2H); 8.47(dd, 1H); 8.92(d, 1H); 11.9(s br, 1H).
















AR3
















7 mg;
Alcohol
PPh3
THF






R
mmol
mg; mmol
mg; mmol
ml
DEAD μl; mmol
Prod. Form
Mass mg; Yield %
MS-ESI









200; 0.32
55; 0.4
340; 1.3
5
205; 1.3
Yellow solid
122; 51%
734 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)


1H NMR spectrum (DMSO d6): 1.22(s, 6H); 1.5-1.9(m, 4H); 1.84(m, 2H); 2.28(s, 6H); 2.55(m, 2H); 2.68(m, 2H); 3.3-3.5(m, 8H); 4.18(s, 2H); 7.00(s, 1H); 7.07(s, 2H); 7.28(dd, 1H); 7.58(d, 1H); 8.17(d, 1H); 8.40(m, 2H); 8.47(dd, 1H); 8.92(d, 1H); 11.9(s br, 1H).
















AR4
















7 mg;
Alcohol
PPh3







R
mmol
mg; mmol
mg; mmol
THF ml
DTAD mg; mmol
Prod. Form
Mass mg; Yield %
MS-ESI









145; 0.23
38; 0.26
360; 1.38
1
205; 0.9
nd*
nd*
nd*





*not determined: Intermediate used directly in last step of robot run without isolation or purification.
















AR5
















7 mg;
Alcohol








R
mmol
mg; mmol
PPh3 mg; mmol
THF ml
DTAD mg; mmol
Prod. Form
Mass mg; Yield %
MS-ESI









145; 0.23
40; 0.26
360; 1.38
1
205; 0.9
nd*
nd*
nd*



















AR6
















7 mg;
Alcohol
PPh3
THF
DTAD





R
mmol
mg; mmol
mg; mmol
ml
mg; mmol
Prod. Form
Mass mg; Yield %
MS-ESI









145; 0.23
47; 0.26
360; 1.38
1
205; 0.9
nd*
nd*
nd*









Example 2
2-[3-(2,2-dimethyl-3-oxo-3-{pyrrolidin-1-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-(4-pyridin-4-ylbutyl)ethanamine




Dry, gaseous HCl was bubbled through a solution of Ab6 (180 mg; 0.29 mmol) in CH2Cl2 (30 ml) until no Ab6 remained. The mixture was treated with iced sat. aq. NaHCO3, extracted with CH2Cl2 and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of ammonia in MeOH(7N)/CH2Cl2 (0 to 10% ammonia in MeOH) to give Example 2 (114 mg).
Yield: 76%
1H NMR spectrum (CDCl3): 1.38 (s, 6H); 1.45 (m, 2H); 1.6 (m, 2H); 1.84 (m, 4H); 2.33 (s, 6H); 2.59 (m, 4H); 2.65 (t, 2H); 2.77 (t, 2H); 3.57; (m, 4H); 4.32 (s, 2H); 7.01 (s, 1H); 7.04 (s, 2H); 7.08 (d, 2H); 8.47 (d, 2H); 11.9 (s br, 1H).
MS-ESI: 518 [M+H]+
The starting material Ab6 was prepared as follows:—




A solution of methyl 3,5-dimethylbenzoate (50 g; 300 mmol) in DME (80 ml) was added to a suspension of NaH (26.8 g; 60% in oil; 670 mmol) in DME (80 ml) under argon. The mixture was heated to reflux and a solution of methyl acetate (45 g; 610 mmol) in DME (40 ml) added dropwise. The mixture was heated for a further 4 h under reflux. The mixture was cooled and the excess of NaH destroyed by the dropwise addition of MeOH (40 ml). The mixture was poured into dilute HCl (2N), extracted with Et2O and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with Et2O/hexanes (10% Et2O) to give methyl 4-(3′,5′-dimethylphenyl)acetoacetate as a yellow oil (31 g).
Yield: 50%
1H NMR spectrum (CDCl3): This compound exists as a 4/1 mixture of keto (k) and enol (e) forms: 2.36 (s, 6H)(e); 2.38 (s, 6H)(k); 3.76 (s, 3H)(k); 3.81 (s, 3H)(e); 4.03 (s, 2H)(k); 5.65 (s, 1H)(e); 7.11 (s, 1H)(e); 7.27 (s, 1H)(k); 7.4 (s, 2H)(e); 7.56 (s, 2H)(k); 12.48 (s, 1H)(e).
MS-ESI: 207 [M+H]+
NaH (2.44 g; 60% in oil; 61 mmol) was added in small portions to a solution of methyl 4-(3′,5′-dimethylphenyl)acetoacetate (9.66 g; 46.9 mmol) in DMF (50 ml) at 0° C. under argon. The mixture was stirred and allowed to warm to room temperature for 30 min. A solution of allyl bromide (4.05 ml; 46.9 mmol) in DMF (5 ml) was added dropwise and the mixture stirred for a further 2 h. The mixture was poured into H2O, extracted with Et2O and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with Et2O/hexanes (0 to 15% Et2O) to give Ab1 as a pale yellow oil (8.3 g).
Yield: 72%
1H NMR spectrum (CDCl3): 2.39 (s, 6H); 2.76 (m, 2H); 3.70 (s, 3H); 4.43 (t, 1H); 5.08 (m, 1H); 5.15 (m, 1H); 5.82 (m, 1H); 7.24 (s, 1H); 7.60 (s, 2H).
MS-ESI: 247 [M+H]+
A solution of Ab1 (3.4 g; 13 mmol) in EtOH (30 ml) was treated with hydrazine hydrate (3.9 ml; 78 mmol) and heated under reflux for 3 h. The EtOH was evaporated and the residue triturated with Et2O. The precipitate was filtered, washed with H2O and dried to give Ab2 as a white powder (2.8 g).
Yield: 95%
1H NMR spectrum (CDCl3+TFAD): 2.42 (s, 6H); 3.32 (d, 2H); 5.11 (d, 1H); 5.19 (d, 1H); 5.97 (m, 1H); 7.16 (s, 2H); 7.24 (s, 1H); 10.95 (s br 1H).
MS-ESI: 229 [M+H]+
A mixture of Ab2 (2.1 g; 9.2 mmol) and 4 (2.15 g; 9.2 mmol) in DMA (30 ml) under argon was treated with K2CO3 (2.54 g; 18.4 mmol). The mixture was stirred and heated at 80° C. for 2 h. The mixture was poured into sat. aq. NaHCO3, extracted with EtOAc and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (50 to 100% EtOAc) to give Ab3 as a pale yellow solid (2.8 g).
Yield: 80%
1H NMR spectrum (CDCl3): 1.35 (s, 6H); 1.8 (m, 4H); 2.32 (s, 6H); 3.14 (m, 2H); 3.55 (m, 4H); 4.18 (s, 2H); 4.97 (m, 2H); 5.89 (m, 1H); 7.02 (s, 1H); 7.03 (s, 2H); 8.9 (br s, 1H).
MS-ESI: 382 [M+H]+
A mixture of Ab3 (2.59 g; 6.8 mmol) and BOC)2O (7.4 g; 34 mmol) in CH3CN (80 ml) was treated with Et3N (1.9 ml; 13.6 mmol). The mixture was heated at 80° C. for 3 h. The solvent was evaporated, the mixture was poured into sat. aq. NaHCO3, extracted with Et2O and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 25% EtOAc) to give Ab4 as a white solid (2.51 g).
Yield: 76%
1H NMR spectrum (CDCl3): 1.18 (s, 9H); 1.34 (s, 6H); 1.8 (m, 4H); 2.3 (s, 6H); 2.85 (m, 2H); 3.54 (m, 4H); 4.43 (s, 2H); 4.87 (m, 2H); 5.73 (m, 1H); 6.8 (s, 2H); 6.98 (s, 1H).
MS-ESI: 482 [M+H]+
4-Methyl-morphololine-N-oxide (1.6 ml; 60% solution in H2O) was added to a solution of Ab4 (2.21 g; 4.6 mmol) in THF (100 ml) and H2O (30 ml). The mixture was cooled to 0° C. and a solution of OsO4 (92 mg; 0.36 mmol) in t-BuOH (1.8 ml) was added dropwise. The mixture was allowed to warm to room temperature for 6 h. The reaction was quenched by the addition of aq. Na2S2O5 (1.75 g) in H2O (50 ml). The THF was evaporated and the mixture extracted with EtOAc. The organic phase was washed with water, brine and dried over MgSO4. The residue (2.21 g) was taken up in THF (100 ml) and H2O (30 ml) and treated with NaIO4. The mixture was stirred overnight. The THF was evaporated and the mixture extracted with EtOAc. The organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 50% EtOAc) to give Ab5 as a buff solid (1.63 g).
Yield: 73%
1H NMR spectrum (CDCl3): 1.21 (s, 9H); 1.34 (s, 6H); 1.9 (m, 4H); 2.32 (s, 6H); 3.23 (d, 2H); 3.55 (m, 4H); 4.47 (s, 2H); 6.8 (s, 2H); 7.01 (s, 1H); 9.56 (d, 1H).
MS-ESI: 484 [M+H]+
A solution of Ab5 (360 mg; 0.74 mmol) and 4-(4-aminobutyl)-pyridine (123 mg; 0.82 mmol) in MeOH (6 ml) was treated with NaBH3CN (52 mg; 0.82 mmol). The mixture was cooled to 0° C. and acetic acid (45 μl; 0.82 mmol) was added. The mixture was allowed to warm to room temperature for 2 h and evaporated. The residue was treated with aq. K2CO3 (10%) and the mixture extracted with EtOAc. The organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with EtOAc and then increasingly polar mixtures of MeOH/CH2Cl2 (0 to 5% MeOH) to give Ab6 as an oil (180 mg).
Yield: 40%
1H NMR spectrum (CDCl3): 1.20 (s, 9H); 1.37 (s, 6H); 1.61 (m, 2H); 1.87 (m, 6H); 2.31 (s, 6H); 2.48 (m, 2H); 2.62 (m, 4H); 2.76 (m, 2H); 3.57 (m, 4H); 4.45 (s, 2H); 6.8 (s, 2H); 7.0 (s, 1H); 7.08 (d, 2H); 8.47 (d, 2H).
MS-ESI: 618 [M+H]+
Example 3
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-(4-pyridin-4-ylbutyl)-ethanamine




A solution of BR1 (322 mg; 0.41 mmol) in CH2Cl2 (5 ml) was treated dropwise with propylamine (340 μl; 4.1 mmol). The mixture was stirred at room temperature for 1 h and then purified directly by flash chromatography eluting with increasingly polar mixtures of MeOH/CH2Cl2 (0 to 10% MeOH) to give Example 3 as a white solid (219 mg).
Yield: 98%
1H NMR spectrum (DMSO d6): 1.25 (s, 6H); 1.43 (m, 6H); 1.61 (m, 6H); 2.3 (s, 6H); 2.59 (m, 4H); 2.65 (m, 2H); 2.75 (m, 2H); 4.16 (s, 2H); 4.57 (s, 2H); 7.02 (s, 1H); 7.11 (s, 2H); 7.21 (d, 2H); 8.44 (m, 2H); 11.8 (s br 1H).
MS-ESI: 544 [M+H]+
Starting material BR1 was prepared as follows:—




A mixture of 3 (4.64 g; 20 mmol) and Ba (5.72 g; 22 mmol) in DMA (50 ml) under argon was treated with K2CO3 (5.52 g; 40 mmol). The mixture was stirred and heated at 70° C. for 6 h. The mixture was poured into sat. aq. NaHCO3, extracted with EtOAc and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 50% EtOAc) to give the alcohol Bb as a pale yellow oil (7.58 g).
Yield: 92%
1H NMR spectrum (DMSO d6): 1.25 (s, 6H); 1.42 (m, 4H); 1.62 (m, 4H); 2.31 (s, 6H); 2.53 (m, 2H); 3.46 (m, 2H); 4.14 (s, 2H); 4.58 (s, 2H); 4.61 (t, 1H); 7.02 (s, 1H); 7.14 (s, 2H); 11.9 (br s, 1H).
MS-ESI: 412 [M+H]+
A mixture of Bb (3.29 g; 8 mmol), phthalimide (2.35 g; 16 mmol) and triphenylphosphine (12.5 g; 48 mmol) in THF (50 ml) was cooled to −20° C. under argon and treated dropwise with DEAD (7.6 ml; 48 mmol). The mixture was allowed to warm to 10° C. for 1 h when water was added and the TBH evaporated. The mixture was extracted with EtOAc and the organic phase was washed with water, brine and dried over MgSO4.
Evaporation gave a crude solid which, without further purification, was immediately taken up in EtOH (200 ml) and treated with hydrazine hydrate (16 ml; 320 mmol). The mixture was stirred for 2 h and then the EtOH was partially evaporated. Addition of CH2Cl2 caused precipitation of phthalhydrazide which was filtered and rinsed with CH2Cl2. The filtrate was evaporated and the residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH) to give Bc as a pale beige solid (2.53 g).
Yield: 77%
1H NMR spectrum (DMSO d6): 1.25 (s, 6H); 1.42 (m, 4H); 1.62 (m, 4H); 2.31 (s, 6H); 2.46 (m, 2H); 2.65 (t, 2H); 4.15 (s, 2H); 4.58 (m, 2H); 7.01 (s, 1H); 7.12 (s, 2H); 11.8 (s br 1H).
MS-ESI: 411 [M+H]+
A solution of Bc (1.43 g; 3.48 mmol) in CH2Cl2 (30 ml) was treated with diisopropylethylamine (910 μl; 5.22 mmol) and cooled to 0° C. A solution of 2,4-dinitrobenzenesulphonyl chloride (1.02 g; 3.84 mmol) in CH2Cl2 (10 ml) was added dropwise and the mixture was allowed to warm to room temperature for 30 min. The mixture was poured into sat. aq. NaHCO3, extracted with EtOAc and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 20% EtOAc) to give Bd as a cream solid (1.1 g).
Yield: 50%
1H NMR spectrum (DMSO d6): 1.22 (s, 6H); 1.41 (m, 4H); 1.59 (s, 4H); 2.3 (s, 6H); 2.57 (m, 2H); 3.11 (m, 2H); 4.12 (s, 2H); 4.55 (s, 2H); 7.0 (s, 1H); 7.03 (s, 2H); 8.17 (d, 1H); 8.59 (m, 2H); 8.83 (d, 1H); 11.8 (s br 1H).
MS-ESI: 641 [M+H]+
A mixture of Bd (300 mg; 0.43 mmol), 4-(4-hydroxybutyl)-pyridine (84 mg; 0.56 mmol) and triphenylphosphine (495 mg; 1.87 mmol) in THF (10 ml) at 0° C. under argon was treated dropwise with DEAD (300 μl; 1.87 mmol). The mixture was allowed to warm to room temperature for 30 min. when water was added. The THF was evaporated, the mixture extracted with EtOAc and the organic phase washed with water, brine and dried over MgSO4.
The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 100% EtOAc) BR1 as a white solid (322 mg).
Yield: 89%
1H NMR spectrum (DMSO d6): 1.24 (s, 6H); 1.38 (m, 4H); 1.54 (m, 8H); 2.29 (s, 6H); 2.57 (m, 2H); 2.64 (m, 2H); 3.36 (m, 4H); 4.18 (s, 2H); 4.52 (m, 2H); 7.02 (s, 1H); 7.08 (s, 2H); 7.16 (d, 2H); 8.20 (d, 1H); 8.41 (d, 2H); 8.47 (dd, 1H); 8.91 (d, 1H); 11.8 (s br 1H).
MS-ESI: 774 [M+H]+
Starting material Ba was prepared as follows:—




A mixture of 8 (14.48 g; 80 mmol) and oxalyl bromide (43.2 g; 200 mmol) containing one drop of DMF was heated at 50° C. for 2 h and then cooled. The excess of oxalyl bromide was evaporated and the residue azeotroped with toluene to give crude 9 which was taken up in CH2Cl2 (25 ml) and cooled to 0° C. Diisopropylethylamine (14 ml; 80 mmol) was added followed by 2.2.1-azabicycloheptane hydrochloride (5.34 g; 40 mmol). The mixture was allowed to warm to room temperature overnight and was diluted with CH2Cl2, washed with aq. HCl (2N), aq. NaOH (1N), water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with CH2Cl2 to give Ba as a white solid (7.4 g).
Yield: 71%
1H NMR spectrum (CDCl3): 1.36 (s, 6H); 1.49 (m, 4H); 1.82 (m, 4H); 3.59 (s, 2H); 4.61 (s, 2H).
Examples 3.1-3.5
The following examples were prepared in a similar manner to Example 3,




the table shows the R group relating to the above structure, the reaction conditions and characteristics for each example, corresponding to the description of the preparation of Example 3 given above:—

Example 3.1
















BR2 mg;
CH2Cl2
Propylamine
Mass mg;
MS-


R
mmol
ml
μl; mmol
Yield
ESI
























292; 0.39
5
320; 3.9
161; 80%
516[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.41(m, 4H); 1.6(m, 4H); 2.29(s, 6H); 2.55(m, 2H); 2.71(m, 4H); 2.81(m, 2H); 4.15(s, 2H); 4.56(s, 2H); 7.02(s, 1H); 7.10(s, 2H); 7.2(d, 2H); 8.43(dd, 2H); 11.7(s br 1H).






Example 3.2
















BR3 mg;
CH2Cl2
Propylamine
Mass mg;
MS-


R
mmol
ml
μl; mmol
Yield
ESI
























123; 0.17
3
140; 1.67
58; 68%
506[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.3(s, 6H); 2.46(m, 2H); 2.64(m, 2H); 2.88(m, 2H); 4.15(s, 2H); 4.19(t, 2H); 4.57(s, 2H); 7.01(s, 1H); 7.09(s, 2H); 7.92(s, 1H); 8.42(s, 1H); 11.9(s br, 1H).






Example 3.3
















BR4 mg;
CH2Cl2
Propylamine
Mass mg;
MS-


R
mmol
ml
μl; mmol
Yield
ESI
























96; 0.12
3
140; 1.67
50; 72%
579[M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.26(s, 6H); 1.44(m, 4H); 1.61(m, 6H); 1.97(s, 3H) 2.25(s, 2H); 2.32(s, 6H); 2.4-2.85(m, 14H); 4.16(s, 2H); 4.58(s, 2H); 7.04(s, 1H); 7.11(s, 2H); 11.8(s, 1H).






Example 3.4
















BR5 mg;
CH2Cl2
Propylamine
Mass mg;
MS-


R
mmol
ml
μl; mmol
Yield
ESI
























167; 0.22
3
180; 2.2
30; 25%
538[M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.26(s, 6H); 1.44(m, 4H); 1.57(m, 2H); 1.62(m, 4H); 2.27(m, 6H); 2.32(s, 6H); 2.5-2.85(m, 6H); 3.52(s, 4H); 4.16(s, 2H); 4.58(s, 2H); 7.03(s, 1H); 7.12(s, 2H); 11.8(s, 1H).






Example 3.5
















BR6 mg;
CH2Cl2
Propylamine
Mass mg;
MS-


R
mmol
ml
μl; mmol
Yield
ESI
























194; 0.24
3
195; 2.4
93; 66%
586[M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.26(s, 6H); 1.44(m, 4H); 1.55(m, 2H); 1.61(m, 4H); 2.32(s, 6H); 2.4-2.85(m, 8H); 2.82(s, 4H); 3.04(m, 4H); 4.16(s, 2H); 4.58(s, 2H); 7.03(s, 1H); 7.12(s, 2H); 11.8(s, 1H).






Intermediates for Examples 3.1-3.5, BR2-BR6 Respectively

Starting materials BR2-6 were prepared as follows, the table showing the reaction conditions and characteristics for each example, corresponding to the description of Example 3 given above:—














BR2















Bd mg;
Alcohol
PPh3 mg;
THF
DEAD
Mass mg;
MS-


R
mmol
mg; mmol
mmol
ml
μl; mmol
Yield
ESI





















300; 0.47
70; 0.56
495; 1.87
10
290; 1.84
292; 83%
746[M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)
















BR3















Bd mg;
Alcohol
PPh3 mg;
THF
DEAD
Mass mg;
MS-


R
mmol
mg; mmol
mmol
ml
μl; mmol
Yield
ESI





















150; 0.23
32; 0.28
362; 1.38
5
145; 0.92
123; 72%
736[M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)
















BR4















Bd mg;
Alcohol
PPh3 mg;
THF
DEAD
Mass mg;
MS-


R
mmol
mg; mmol
mmol
ml
μl; mmol
Yield
ESI





















150; 0.23
53; 0.28
362; 1.38
5
200; 1.26
96; 51%
809[M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)
















BR5















Bd mg;
Alcohol
PPh3 mg;
THF
DEAD
Mass mg;
MS-


R
mmol
mg; mmol
mmol
ml
μl; mmol
Yield
ESI





















200; 0.31
54; 0.37
490; 1.86
5
270; 1.72
167; 70%
768[M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)
















BR6















Bd mg;
Alcohol
PPh3 mg;
THF
DEAD
Mass mg;
MS-


R
mmol
mg; mmol
mmol
ml
μl; mmol
Yield
ESI





















200; 0.31
72; 0.37
490; 1.86
5
270; 1.72
194; 77%
816[M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH).






Example 4
2-[3-(2,2-dimethyl-3-oxo-3-azabicyclo[2.2.1]heptan-7-ylpropoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine




A solution of partially purified* Cg17 (4.2 g; from 2.3 mmol of Cf) in CH2Cl2 (30 ml) under nitrogen was treated dropwise with n-propylamine (1.36 ml; 23 mmol) at room temperature. The mixture was stirred at room temperature for 2 h, the solvents evaporated and the residue purified directly by flash chromatography eluting with increasingly polar mixtures of EtOAc and then MeOH/CH2Cl2 (0 to 15% MeOH) to give Example 4 as a beige solid (768 mg). *Contains some Ph3PO
Yield: 59% for last two steps.
1H NMR spectrum (DMSO d6): 1.13 (d, 3H); 1.25 (s, 6H); 1.42 (m, 4H); 1.60 (m, 4H); 2.3 (s, 6H); 2.55-2.95 (m, 7H); 4.14 (s, 2H); 4.57 (s, 2H); 5.94 (s, 2H); 6.55 (d, 1H); 6.69 (s, 1H); 6.76 (d, 1H); 7.03 (s, 1H); 7.04 (s, 2H); 11.8 (s br 1H).
MS-ESI: 573 [M+H]+
Starting materials Ce, Cf and CR17 were prepared as follows:—







A solution of methyl 3,5-dimethylbenzoate (148 g; 0.9 mol) and 3S-methylbutyrolactone (90 g; 0.9 mol) in THF (2.4 l) under argon was cooled to 0° C. and treated dropwise rapidly with LHMDS (1.35 l; 1.35 mol; 1M in hexanes). The mixture was stirred for 2 h while the temperature was maintained below 10° C. The mixture was poured into dilute HCl (2N, 800 ml) at 0° C. Further dilute HCl (2N) was added until the pH reached 1.6. The THF was evaporated and the residual aqueous phase was extracted with EtOAc. The organic phase was washed with sat. aq. NaHCO3, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/hexanes (10 to 15% EtOAc) to give Ca as a colourless oil (127.7 g).
Yield: 61%.
1H NMR spectrum (DMSO d6): 1.09 (td, 3H); 2.36 (s, 6H); 3.05 (m, 1H); 3.93 (t, 1H); 4.50 (t, 1H); 4.78 (d, 1H); 7.36 (s, 1H); 7.67 (s, 2H).
MS-ESI: 233 [M+H]+
Compound Ca (127.5 g; 0.55 mol) was dissolved in EtOH (2.0 l) and hydrazine hydrate (27 ml; 0.55 mol) was added. The mixture was stirred overnight at room temperature. Dilute HCl (12N; 12 ml) was added and the mixture stirred for a further 1 h. The precipitate was filtered to give Cb as a white solid (63 g). Crystallisation from the mother liquors yielded further batches of Cb (29 g).
Yield: 68%
1H NMR spectrum (DMSO d6): 1.15 (d, 3H); 2.23 (s, 6H); 2.77 (m, 1H); 3.53 (d, 2H); 4.77 (br s, 1H); 7.01 (s, 1H); 7.04 (s, 2H); 9.5 (br s, 1H).
MS-ESI: 247 [M+H]+
A mixture of Cb (50 g; 0.20 mol) and Ba (60 g; 0.23 mol) in DMA (350 ml) under argon was treated with K2CO3 (56 g; 0.41 mol). The mixture was stirred and heated at 80° C. overnight. The mixture was cooled and poured into a stirred mixture of sat. aq. NAHCO3/H2O (1:2.5). The precipitate was filtered, washed abundantly with water and dried, to give the alcohol Cc as a pale beige solid. (84.5 g).
Yield: 99%
1H NMR spectrum (DMSO d6): 1.12 (d, 3H); 1.25 (s, 6H); 1.42 (m, 4H); 1.62 (m, 4H); 2.31 (s, 6H); 2.75 (m, 1H); 3.46 (m, 2H); 4.14 (m, 2H); 4.51 (br s, 1H); 4.58 (m, 2H); 7.03 (s, 1H); 7.06 (s, 2H); 11.9 (br s, 1H).
MS-ESI: 426 [M+H]+
A solution of Cc (42 g; 0.1 mol) in CH2Cl2 (800 ml) under argon was treated with acetonitrile (3 l) and DMAP (250 mg; cat.). The mixture was stirred and cooled to 0° C. and a solution of BOCOBOC (24 g; 0.11 mol) in acetonitrile (100 ML) was added slowly, dropwise. The mixture was allowed to warm to room temperature until no Cc remained ( ̃1 day) and was poured into water (2 l) and stirred for 4 h. The organic solvents were evaporated. The mixture was extracted with CH2Cl2 and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (20 to 50% EtOAc) to give Cd as a colourless foam (25.5 g).
Yield: 50%
1H NMR spectrum (DMSO d6): 1.02 (d, 3H); 1.16 (s, 9H); 1.270 (s, 6H); 1.44 (m, 4H); 1.62 (m, 4H); 2.29 (s, 6H); 2.33 (m, 1H); 3.38 (m, 2H); 4.23 (m, 2H); 4.54 (m, 1H); 4.59 (s, 2H); 6.89 (s, 1H); 7.05 (s, 2H).
MS-ESI: 526 [M+H]+
A solution of Cd (50.9 g; 97 mmol), phthalimide (17 g; 116 mmol) and triphenyl phosphine (38 g; 145 mmol) in THF (1 l) under argon was cooled to 0° C. and treated rapidly, portionwise with DTAD (33.3 g; 145 mmol). The mixture was allowed to warm to room temperature for 2 h 30 min. Water (500 ml) was added to the mixture and the organic solvent evaporated. The mixture was extracted with CH2Cl2 and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 15% EtOAc) to give a cream foam (48.4 g) which was dissolved in EtOH (1.5 l). The mixture was treated with hydrazine hydrate (143 ml; 2.95 mol) at room temperature and was stirred for a further 26 h. The precipitate was filtered and the residue purified by flash chromatography eluting with increasingly polar mixtures of MeOH/CH2Cl2 (5 to 15% MeOH) to give Ce as a white solid (31.4 g).
Yield: 77%
1H NMR spectrum (DMSO d6): 1.12 (d, 3H); 1.25 (s, 6H); 1.42 (m, 4H); 1.61 (m, 4H), 2.31 (s, 6H); 2.63 (m, 2H); 2.72 (m, 1H); 4.15 (m, 2H); 4.57 (m, 2H); 7.02 (s, 1H); 7.06 (s, 2H); 8.9 (br s, 1H).
MS-ESI: 425 [M+H]+
A solution of Ce (1.5 g; 3.58 mmol) in THF (70 ml) was cooled to 0° C. under argon. DIEA (810 μl; 4.65 mmol) was added followed by a solution of DNOSCl (1.04 g; 3.9 mmol) in THF (20 ml). The mixture was allowed to warm to room temperature for 2 h and was treated with aq. HCl (1N). The mixture was extracted with CH2Cl2 and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 100% EtOAc) to give Cf as a cream foam (2.07 g).
Yield: 88%
1H NMR spectrum (DMSO d6): 1.10 (d, 3H); 1.23 (s, 6H); 1.41 (m, 4H); 1.58 (m, 4H); 2.29 (s, 6H); 2.83 (m, 1H); 3.19 (m, 2H); 4.13 (m, 2H); 4.55 (m, 2H); 6.95 (s, 2H); 6.98 (s, 1H); 8.12 (d, 1H); 8.49 (br s, 1H); 8.52 (q, 1H); 8.79 (d, 1H).
MS-ESI: 655 [M+H]+
A mixture of Cf (1.5 g; 2.3 mmol), the corresponding alcohol (575 mg; 3.45 mmol) and triphenylphosphine (3.67 g; 14 mmol) in THF (50 ml) at 0° C. under argon was treated with DTAD (2.12 g; 9.2 mmol). The mixture was allowed to warm to room temperature for 1 h when water was added. The mixture was extracted with CH2Cl2 and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/hexanes (0 to 50%) and then EtOAc/CH2Cl2 (0 to 100% EtOAc) to give CR17 as a beige solid (4.2 g).
This partially purified intermediate (containing some Ph3PO) was used directly in the final step.
Example 4.1-4.54
The following examples were prepared using the same methodology as Example 4,




The table shows the R group relating to the above structure, the reaction conditions and characteristics of each example, corresponding to the description of the preparation of Example 4 given above:—
Example 4.1
















CR1 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











100; 0.13
5
0.11; 1.3
53; 78%
530 [M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.12(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.60(m, 4H); 2.28(s, 6H); 2.6-2.9(m, 7H); 4.14(s, 2H); 4.57(s, 2H); 7.03(s, 3H); 7.12(d, 2H); 8.39(d, 2H); 11.8(s br 1H).






Example 4.2
















CR2 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











202; 0.25
3
0.21; 2.5
130; 91%
558 [M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.35(m, 2H); 1.42(m, 4H); 1.53(m, 2H); 1.61(m, 4H); 2.29(s, 6H); 2.5-2.95(m, 7H); 4.15(s, 2H); 4.57(s, 2H); 7.03(s, 1H); 7.05(s, 2H); 7.17(d, 2H); 8.42(d, 2H) 11.8(s br 1H).






Example 4.3
















CR3 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











68; 0.09
3
0.08; 0.88
42; 87%
544 [M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6 -TFAd): 1.25(m, 9H); 1.43(m, 4H); 1.60(m, 4H); 1.97(m, 2H); 2.32(s, 6H); 2.8-3.15(m, 7H); 4.20(s, 2H); 4.55(s, 2H); 7.03(s, 2H); 7.07(s, 1H) 7.96(d, 2H); 8.89(d, 2H); 11.8(s br 1H).






Example 4.4
















CR4 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











514; 0.19
3
0.165; 2
75; 68%
557 [M + H]+





Chromato.-EtOAc


1H NMR spectrum (DMSO d6): 1.12(d, 3H); 1.25(s, 6H); 1.32(m, 2H); 1.42(m, 4H); 1.50;(m, 2H); 1.61(m, 4H); 2.28(s, 6H); 2.35-2.85(m, 7H); 4.14(s, 2H); 4.57(s, 2H); 7.01(s, 1H); 7.06(s, 2H); 7.15(m, 3H); 7.24(m, 2H); 11.8(s br 1H).






Example 4.5
















CR5 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











1600; 0.5
30
0.58; 7
185; 63%
587 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.35(m, 2H); 1.44(m, 4H); 1.47;(m, 2H); 1.61(m, 4H); 2.29(s, 6H); 2.4-2.9(m, 7H); 3.70(s, 3H); 4.15(s, 2H); 4.57(s, 2H); 6.81(d, 2H); 7.04(m, 5H); 11.8(s br 1H).






Example 4.6
















CR6 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











230; 0.23
5
0.19; 2.3
103; 56%
xxx [M + H]+





Chromato.-EtOAc/CH2Cl2 (75 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH).


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.37(m, 2H); 1.42(m, 4H); 1.54(m, 2H); 1.59(m, 4H); 2.28(s, 6H); 2.55-2.95(m, 7H); 4.15(s, 2H); 4.57(s, 2H); 7.02(s, 1H); 7.05(s, 2H); 7.44(d, 2H); 8.14(d, 2H); 11.8(s br 1H)..






Example 4.7
















CR7 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











nd*; 0.23
5
0.19; 2.3
48; 37%
559 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.17(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.48(m, 2H); 1.61(m, 4H); 1.71(m, 2H); 2.3(s, 6H); 2.55-3.0(m, 7H); 4.17(s, 2H); 4.58(s, 2H); 7.04(m, 3H); 7.32(t, 1H); 8.71(d, 2H); 11.8(s br 1H).






Example 4.8
















CR8 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











nd*; 0.23
3
0.19; 2.3
71; 54%
559 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.42(m, 6H); 1.63(m, 6H); 2.29(s, 6H); 2.55-2.9(m, 7H); 4.16(s, 2H); 4.57(s, 2H); 7.02(s, 1H); 7.05(s, 2H); 8.45(d, 1H); 8.52(m, 2H); 11.8(s br 1H)..






Example 4.9
















CR9 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











nd*; 0.38
10
0.31; 3.8
94; 45%
554 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.12(d, 3H); 1.24(s, 6H); 1.41(m, 4H); 1.60(m, 4H); 2.29(s, 6H); 2.6-2.9(m, 7H); 4.15(s, 2H); 4.56(s, 2H); 7.02(s, 3H); 7.31(d, 2H); 7.68(d, 2H); 11.8(s br 1H).






Example 4.10
















CR10 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











nd*; 0.23
3
0.19; 2.3
50; 38%
579 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 7% MeOH)


1H NMR spectrum (DMSO d6): 1.16(d, 3H); 1.25(s, 6H); 1.40(m, 4H); 1.59(m, 4H); 2.27(s, 6H); 2.55-2.95(m, 7H); 4.16(m, 2H); 4.56(s, 2H); 7.03(s, 1H); 7.04(s, 2H); 7.3(d, 1H); 7.46(m, 2H); 7.62(s, 1H); 7.8(m, 2H); 7.86(d, 1H); 11.8(s br 1H).






Example 4.11















R
CR11 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.23
3
0.19; 2.3
88; 68%
559 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.29(s, 6H); 2.6-2.95(m, 5H); 3.45(s, 2H); 4.16(s, 2H); 4.41(s, 2H); 4.56(s, 2H); 7.03(s, 1H); 7.06(s, 2H); 7.2-7.35(m, 6H); 11.8(s br 1H).






Example 4.12















R
CR12 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.46
10
0.38; 4.6
152; 62%
529 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.60(m, 4H); 2.29(s, 6H); 2.45-2.95(m, 7H); 4.15(s, 2H); 4.57(s, 2H); 7.03(s, 1H); 7.04(s, 2H), 7.10(d, 2H); 7.16(t, 1H); 7.24(t, 2H); 11.8(s br 1H).






Example 4.13















R
CR13 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.38
20
450; 7.6
154; 68%
597 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 7% MeOH)


1H NMR spectrum (DMSO d6): 1.12(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.6(m, 4H); 2.27(s, 6H); 2.6-2.9(m, 7H); 4.14(m, 2H); 4.56(s, 2H); 7.02(s, 1H); 7.03(s, 2H); 7.45(m, 4H); 11.8(s br 1H).






Example 4.14















R
CR14 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
105; 71%
589 [M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.60(m, 4H); 2.29(s, 6H); 2.6-2.9(m, 7H), 3.68(s, 3H); 3.70(s, 3H); 4.15(s, 2H); 4.57(s, 2H); 6.60(q, 1H); 6.72(d, 1H); 6.79(d, 1H); 7.03(s, 1H); 7.05(s, 1H); 11.8(s br 1H).






Example 4.15















R
CR15 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.295; 5
32; 22%
572 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.16(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.60(m, 4H); 2.30(s, 6H); 2.6-2.9(m, 7H); 2.83(s, 6H); 4.16(s, 2H); 4.57(s, 2H); 6.61(d, 2H); 6.92(d, 2H); 7.04(s, 3H); 11.8(s br 1H).






Example 4.16















R
CR16 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.46
10
0.380; 4.6
149; 59%
547 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.60(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 4.15(s, 2H); 4.57(s, 2H); 7.03(m, 5H); 7.12(m, 2H); 11.8(s br 1H).






Example 4.17















R
CR18 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
61; 43%
565 [M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (CDCl3): 1.21(d, 3H); 1.35(d, 6H); 1.44(m, 4H); 1.75(m, 4H); 2.33(s, 6H); 2.6-3.1(m, 7H); 4.26(m, 2H); 4.63(s, 2H); 6.61(m, 3H); 7.01(s, 3H); 9.1(s br, 1H).






Example 4.18















R
CR19 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
53; 36%
585 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 15H); 1.41(m, 4H); 1.6(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 4.15(s, 2H); 4.56(s, 2H); 7.02(d, 2H); 7.03(s, 1H); 7.04(s, 2H); 7.25(d, 2H); 11.8(s br 1H).






Example 4.19















R
CR20 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
40; 29%
557 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.18(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.16(s, 3H); 2.20(s, 3H); 2.30(s, 6H); 2.5-2.95(m, 7H); 4.17(s, 2H); 4.56(s, 2H); 6.84(s, 1H); 6.88(d, 1H); 6.99(s, 1H); 7.05(s, 3H); 11.8(s br 1H).






Example 4.20















R
CR21 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
49; 34%
581 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.29(s, 6H); 2.55-2.9(m, 7H); 4.15(s, 2H); 4.57(s, 2H); 7.02(s, 1H); 7.04(s, 2H); 7.15(m, 1H); 7.27(m, 2H); 11.8(s br 1H).






Example 4.21















R
CR22 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
64; 44%
581 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 4.15(s, 2H); 4.56(s, 2H); 7.02(s, 1H); 7.04(s, 2H); 7.10(m, 1H); 7.26(m, 1H); 7.35(m, 1H); 11.8(s br 1H).






Example 4.22















R
CR23 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
50; 34%
597 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.28(s, 6H); 2.55-2.95(m, 7H); 4.16(m, 2H); 4.56(s, 2H); 7.03(s, 3H); 7.11(d, 1H); 7.41(s, 1H) 7.48(d, 1H); 11.8(s br 1H).






Example 4.23
















CR24







mg;

Propyl-
Mass



mmol
CH2Cl2
amine
mg;


R
Cf
ml
ml; mmol
Yield
MS-ESI











nd*;0.25
5
0.27; 4.5
40; 27%
597[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.61(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 4.15(s, 2H); 4.57(s, 2H); 7.02(s, 1H); 7.05(s, 2H); 7.25(t, 1H); 7.4(d, 2H); 11.8(s br 1H).






Example 4.24















R
CR25 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.23
5
540; 9.2
50; 37%
580 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.31(s, 6H); 2.55-2.95(m, 3H); 3.1-3.75(m, 4H); 3.67(m, 2H); 4.15(s, 2H); 4.57(s, 2H); 4.62(m, 1H); 4.68(m, 1H); 4.76(s, 1H); 4.93(s, 1H); 7.03(s, 1H); 7.06(s, 1H); 11.8(s br 1H).






Example 4.25















R
CR26 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.23
5
0.810; 13.2
68; 52%
566 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.26(s, 6H); 1.42(m, 4H); 1.62(m, 4H); 2.03(m, 2H); 2.31(s, 6H); 2.33(m, 3H); 2.55-2.95(m, 6H); 4.14(s, 2H); 4.49(m, 2); 4.58(s, 2H); 4.71(s, 1H); 4.8(s, 1H); 7.03(s, 1H); 7.06(s, 2H); 11.8(s br 1H).






Example 4.26
















CR27







mg;

Propyl-
Mass




mmol
CH2Cl2
amine
mg;



R
Cf
ml
ml; mmol
Yield
MS-ESI











nd*;0.26
5
0.27; 3.3
55; 38%
547[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 4.15(s, 2H); 4.57(s, 2H); 6.97(m, 3H); 7.03(s, 3H); 7.27(m, 1H); 11.8(s br 1H).






Example 4.27
















CR28







mg;

Propyl-
Mass



mmol
CH2Cl2
amine
mg;


R
Cf
ml
ml; mmol
Yield
MS-ESI











nd*;0.26
5
0.27; 3.3
40; 27%
563[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 4.15(m, 2H); 4.57(s, 2H); 7.03(s, 3H); 7.09(m, 1H); 7.25(m, 3H); 11.8(s br 1H).






Example 4.28
















CR29







mg;

Propyl-
Mass



mmol
CH2Cl2
amine
mg;


R
Cf
ml
ml; mmol
Yield
MS-ESI











nd*;0.26
5
0.27; 3.3
47; 32%
559[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.16(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.3(s, 6H); 2.55-2.95(m, 7H); 3.71(s, 3H); 4.16(s, 2H); 4.56(s, 2H); 6.7(m, 3H); 7.04(s, 3H); 7.16(m, 1H); 11.8(s br 1H).






Example 4.29
















CR30







mg;

Propyl-
Mass



mmol
CH2Cl2
amine
mg;


R
Cf
ml
mmol
Yield
MS-ESI











nd*;0.26
5
0.27; 3.3
70; 49%
543[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.24(s, 3H); 2.3(s, 6H); 2.55-2.95(m, 7H); 4.16(s, 2H); 4.57(s, 2H); 6.90(m, 2H); 6.98(d, 1H); 7.04(s, 3H); 7.12(t, 1H); 11.8(s br 1H).






Example 4.30















R
CR31 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.26
5
0.27; 3.3
64; 43%
563 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(m, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.29(s, 6H); 2.5-2.9(m, 7H); 4.16(s, 2H); 4.56(m, 2H); 7.03(s, 3H); 7.14(d, 2H); 7.29(d, 2H); 11.8(s br 1H).






Example 4.31
















CR32 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











nd*; 0.26
5
0.27; 3.3
143; 100%
543[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(m, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.24(s, 3H); 2.29(s, 6H); 2.5-2.95(m, 7H); 4.15(s, 2H); 4.56(m, 2H); 6.98(d, 2H); 7.04(m, 5H); 11.8(s br 1H).






Example 4.32
















CR33 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











nd*; 0.26
5
0.27; 3.3
133; 90%
559[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(m, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.29(s, 6H); 2.5-2.95(m, 7H); 3.70(s, 3H); 4.15(s, 2H); 4.56(m, 2H); 6.79(d, 2H); 7.01;(d, 2H); 7.04(s, 3H); 11.8(s br 1H).






Example 4.33
















CR34

Propyl-





mg;

amine
Mass




mmol
CH2Cl2
ml;
mg;



R
Cf
ml
mmol
Yield
MS-ESI











nd*;0.26
5
0.27;3.3
51; 35%
547[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(m, 6H); 1.42(m, 4H); 1.6(m, 4H); 2.29(s, 6H); 2.5-2.95(m, 7H); 3.70(s, 3H); 4.16(m, 2H); 4.56(s, 2H); 7.04(s, 3H); 7.09(m, 2H); 7.21;(m, 2H); 11.8(s br 1H).






Example 4.34
Example 4.34 was prepared by a different methodology (opening of epoxide by Ce): see below.
Example 4.35
















CR36 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
78; 55%
565[M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 4.14(m, 2H); 4.57(s, 2H); 6.94(m, 1H); 7.03(s, 3H); 7.15(m, 1H); 7.26(m, 1H); 11.8(s br 1H).






Example 4.36
















CR37 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
32; 22%
589[M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.60(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 3.68(s, 6H); 4.15(m, 2H); 4.57(s, 2H); 6.3(m, 3H); 7.03(s, 1H); 7.04(s, 2H); 11.8(s br 1H).






Example 4.37
















CR38 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
102; 66%
619[M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.60(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 7H); 3.60(s, 3H); 3.69(s, 6H); 4.14(s, 2H); 4.56(s, 2H); 6.42(s, 2H); 7.02(s, 1H); 7.05(s, 2H); 11.8(s br 1H).






Example 4.38
















CR39 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
91; 62%
589[M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.15(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 1.78(m, 2H); 2.29(s, 6H); 2.55-2.95(m, 5H); 3.68(s, 3H); 3.88(t, 2H); 4.15(s, 2H); 4.56(s, 2H); 6.80(m, 4H); 7.02(s, 1H); 7.06(s, 2H); 11.8(s br 1H).






Example 4.39
















CR40 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
85; 61%
562[M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH).


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.08(s, 6H); 2.30(s, 6H); 2.55-2.95(m, 3H); 3.35(s, 2H); 3.53(s, 2H); 4.14(m, 2H); 4.57(s, 2H); 6.01(d, 1H); 6.10(d, 1H); 7.03(s, 1H); 7.05(s, 2H), 11.8(s br 1H).






Example 4.40
















CR41 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
40; 29%
544[M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.61(m, 4H); 2.29(s, 6H); 2.55-2.95(m, 5H); 3.01;(m, 2H); 4.14(s, 2H); 4.56(s, 2H); 5.37(s, 1H); 6.50(m, 3H); 7.04(m, 5H); 11.8(s br 1H).






Example 4.41
















CR42 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
87; 64%
541[M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.16(d, 3H); 1.20(m, 6H); 1.41(m, 4H); 1.61(m, 4H); 2.30(s, 6H); 2.55-2.95(m, 3H); 3.27(m, 2); 4.13(s, 2H); 4.53(s, 2H); 6.23(m, 1H); 6.42(d, 1H); 7.04(s, 1H); 7.07(s, 2H); 7.21(t, 1H); 7.30(t, 2H); 7.35(d, 2H); 11.8(s br 1H).






Example 4.42
















CR43 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
5
0.27; 4.5
98; 72%
545[M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.20(m, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.31(s, 6H); 2.61(m, 1H); 2.68(m, 1H); 2.85(m, 1H); 3.53(s, 2H); 3.70(s, 3H); 4.12(m, 2H); 4.56(s, 2H); 6.81(d, 2H); 7.03(s, 1H); 7.07(s, 2H); 7.12(d, 2H); 11.8(s br 1H).






Example 4.43
















CR44 mg;
CH2Cl2
Propylamine
Mass mg;
MS-


R
mmol Cf
ml
ml; mmol
Yield
ESI











nd*; 0.25
5
0.27; 3.3
100; 63%
629[M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.08(d, 6H); 1.18(d, 3H); 1.26(s, 6H); 1.42(m, 4H); 1.60(m, 4H); 2.31(s, 6H); 2.55-2.95(m, 7H); 3.73(m, 1H); 4.18(m, 2H); 4.56(s, 2H); 5.95(s, 1H); 6.96(d, 2H); 7.04(s, 3H); 7.25(d, 2H); 8.22(s, 1H); 11.8(s br 1H).






Example 4.44
Example C45 was prepared by a different methodology (reductive amination of Ce): see below.
Example 4.45
















CR46 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











108; 0.14
3
0.17; 2.0
71; 93%
544[M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 15% MeOH)


1H NMR spectrum (DMSO d6): 1.14(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.3(s, 6H); 2.55-2.95(m, 7H); 4.14(s, 2H); 4.57(s, 2H); 4.83(s, 2H); 6.44(d, 2H); 6.74(d, 2H); 7.04(s, 1H); 7.05(s, 2H); 11.8(s br, 1H).






Example 4.46
















CR47 mg;
CH2Cl2
Propylamine ml;
Mass mg;
MS


R
mmol
ml
mmol
Yield
ESI











nd*; 0.14
5
0.15; 1.8
41; 45%
640[M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.18(d, 3H); 1.25(m, 6H); 1.42(m, 4H); 1.5-1.9(m, 12H); 2.31(s, 6H); 2.55-2.95(m, 8H); 4.16(m, 2H); 4.56(s, 2H); 7.03(m, 5H); 7.51(d, 2H); 9.81; (s, 1H); 11.8(s br, 1H).






Example 4.47
















CR48 mg;
CH2Cl2
Propylamine ml;
Mass mg;
MS-


R
mmol Cf
ml
mmol
Yield
ESI











nd*; 0.15
3
0.12; 1.5
135; 99%
700[M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)


1H NMR spectrum (DMSO d6-TFAd): 1.28(m, 9H); 1.43(m, 4H); 1.62(m, 4H); 2.33(s, 6H); 2.8-3.25(m, 7H); 3.51(s, 6H); 4.23(m, 2H); 4.57(s, 2H); 7.05(s, 2H); 7.08(s, 1H); 7.31(d, 2H); 7.47(d, 2H); 11.8(s br, 1H).






Example 4.48
















CR49 mg;
CH2Cl2
Propylamine ml;
Mass mg;



R
mmol Cf
ml
mmol
Yield
MS-ESI











nd*; 0.25
3
0.15; 2.5
80; 60%
535[M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.30(s, 6H); 2.55-2.95(m, 7H); 4.15(m, 2H); 4.57(s, 2H); 6.76(d, 1H); 6.90(dd, 1H); 7.02(s, 1H); 7.05(s, 2H); 7.27(d, 1H); 11.76(s br, 1H).






Example 4.49
















CR50 mg;
CH2Cl2
Propylamine ml;
Mass mg;
MS-


R
mmol Cf
ml
mmol
Yield
ESI











nd*; 0.6
5
0.355; 6
181; 49%
622[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.12(d, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.60(m, 4H); 2.29(s, 6H); 2.55-2.85(m, 7H); 2.92(s, 3H); 4.14(s, 2H); 4.57(s, 2H); 7.06(m, 7H); 11.74(s br, 1H).






Example 4.50
















CR51 mg;
CH2Cl2
Propylamine ml;
Mass mg;
MS-


R
mmol Cf
ml
mmol
Yield
ESI











nd*; 0.15
3
0.09; 1.5
63; 67%
630[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.16(d, 3H); 1.25(m, 12H); 1.42(m, 4H); 1.60(m, 4H); 2.30(s, 6H); 2.55-2.95(m, 7H); 4.16(m, 2H); 4.5(s, 2H); 4.87; (m, 1H); 7.0(d, 2H); 7.04(s, 3H); 7.34(s, 2H); 9.44(s, 1H); 11.8(s br, 1H).






Example 4.51
















CR52 mg;
CH2Cl2
Propylamine ml;
Mass mg;
MS-


R
mmol Cf
ml
mmol
Yield
ESI











nd*; 0.11
2
0.065; 1.1
42; 57%
669[M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 15% MeOH)


1H NMR spectrum (DMSO d6): 1.16(d, 3H); 1.25(s, 6H); 1.25-1.8(m, 18H); 2.31(s, 6H); 2.55-2.95(m, 7H); 3.43(m, 1H); 4.16(m, 2H); 4.56(s, 2H); 6.04(s, 1H); 6.96(d, 2H); 7.04(s, 3H); 7.25(d, 2H); 8.25(s, 1H); 11.86(s br, 1H).






Example 4.52
















CR53 mg;
CH2Cl2
Propylamine
Mass mg;



R
mmol Cf
ml
ml; mmol
Yield
MS-ESI











nd*; 0.4
5
0.24; 4
93; 44%
535 [M + H]+





Chromato.-EtOAc


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.25(s, 6H); 1.1-1.7(m, 21H); 2.3(s, 6H); 2.35-2.85(m, 5H); 4.15(s, 2H); 4.57(s, 2H); 7.03(s, 1H); 7.06(s, 2H) 11.8(s br, 1H).






Example 4.53
Example 4.53 was prepared by a different methodology (alkylation of Ce): see below
Example 4.54















R
CR55 mg; mmol Cf
CH2Cl2 ml
Propylamine ml; mmol
Mass mg; Yield
MS-ESI











nd*; 0.25
5
0.15; 2.5
64; 42%
610 [M + H]+





Chromato.-EtOAc and then MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6): 1.16(m, 3H); 1.25(s, 6H); 1.41(m, 4H); 1.59(m, 4H); 2.28(s, 6H); 2.55–3.0(m, 7H); 3.60(s, 3H); 4.16(s, 2H); 4.56(s, 2H); 6.6(d, 1H); 7.02(s, 3H); 7.42(m, 3H); 7.81(d, 1H); 11.8(s br, 1H).


*nd = not determined, partially purified CR used directly from previous step.






Example 4.34
2-[3-(2, methyl-3-oxo-3-azabicyclo[2.2.1]heptan-7-ylpropoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-hydroxy-2-phenylethyl]-(2S)-propylamine




A solution of Ce (106 mg; 0.25 mmol) in acetonitrile (3 ml) was treated with styrene oxide and the mixture was heated at 60° C. overnight. The solvent was evaporated and the residue purified by flash chromatography eluting with increasingly polar mixtures of MeOH/CH2Cl2 hexanes (0 to 10% MeOH) to give Example 4.34 as a white foam (40 mg).
Yield: 30%.
1H NMR spectrum (DMSO d6): 1.15 (m, 3H); 1.26 (m, 6H); 1.42 (m, 4H); 1.61; (m, 4H); 2.29 (s, 6H); 2.55-2.95 (m, 5H); 4.16 (m, 2H); 4.57 (m, 3H); 7.06 (m, 3H); 7.26 (m, 5H); 11.6 (s br, 1H).
MS-ESI: 545 [M+H]+
Example 4.44
2-[3-(2,2-dimethyl-3-oxo-3-azabicyclo[2.2.1]heptan-7-ylpropoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-methyl-2-phenylethyl]-(2S)-propylamine




A solution of Ce (126 mg; 0.3 mmol) and 2-phenyl propionaldehyde (45 μl; 0.3 mmol) in methanol (6 ml) under argon was cooled to 0° C. Sodium cyanoborohydride (39 mg; 0.6 mmol) was added portionwise and the mixture was stirred for 3 h. The methanol was evaporated and the residue taken up in CH2Cl2. The organic phase was washed with sat. aq. NaHCO3, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 100% EtOAc) and then MeOH/CH2Cl2 (0 to 10% MeOH) to give Example 4.44 as a white foam (88 mg).
Yield: 54%.
1H NMR spectrum (DMSO d6): 1.10 (m, 6H); 1.24 (s, 6H); 1.41 (m, 4H); 1.60 (m, 4H); 2.28 (m, 6H); 2.55-2.95 (m, 6H); 4.14 (s, 2H); 4.56 (s, 2H); 7.03 (s, 3H); 7.09 (t, 2H); 7.16 (d, 1H); 7.23 (t, 2H); 11.8 (s br 1H).
MS-ESI: 543 [M+H]+
Example 4.53
2-[3-(2,2-dimethyl-3-oxo-3-azabicyclo[2.2.1]heptan-7-ylpropoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[1H-1,2,3-benzotriazol-5-ylaminocarbonylmethyl]-(2S)-propylamine




To a solution of Ce (200 mg; 0.47 mmol) in DMA (1 ml) at 140° C. was added solid N-1H-1,2,3-benzotriazole-5-yl-2-chloroacetamide (98 mg; 0.47 mmol) over 5 min. The reaction mixture was heated at 140° C. for a further 5 min. The resulting orange solution was allowed to cool to room temperature and purified by flash chromatography on silica gel eluting with CH2Cl/NH3 in MeOH (0 to 5% NH3 in MeOH) to give Example 4.53 (110 mg).
Yield: 37%
1H NMR spectrum (CDCl3): 1.20 (d, 3H); 1.22 (s, 6H); 1.40 (m, 4H); 1.70 (m, 4H); 2.31 (s, 6H); 2.77 (m, 1H); 2.99 (m, 2H); 3.34 (s, 2H), 4.28 (m, 2H); 4.57 (s, 2H); 5.37 (s, 1H); 6.95 (s, 2H); 7.02 (s, 1H); 7.17 (br d, 1H); 7.84 (br d, 1H); 8.26 (s, 1H); 9.50 (br s, 1H); 9.67 (s, 1H).
MS-ESI: 599 [M+]+




To a stirred solution of 5-aminobenzotriazole (1.00 g; 7.50 mmol) in THF (20 ml) at −10° C., were added triethylamine (0.987 g; 9.75 mmol) and chloroacetyl chloride (0.841 g; 7.50 mmol) dropwise over 5 min. The reaction mixture was allowed to warm to room temperature and stirred overnight.
The resulting precipitate was collected by filtration, washed with CH2Cl2 and dried to afford N-1H-1,2,3-benzotriazole-5-yl-2-chloroacetamide (1.32 g) as a beige solid.
Yield: 83.5%
1H NMR spectrum (DMSO d6): 4.33 (s, 2H); 7.42 (br d, 1H); 7.91 (br d, 1H); 8.35 (s, 1H).
MS-ESI: 211 [M+H]+
Intermediates for Examples 4.1-4.55, CR1-CR55 Respectively
Starting materials CR1-CR55 were prepared as follows, the table showing the reaction conditions and characteristics for each example, corresponding to the description of Example 4 given above:—










CR1













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DEAD mg; mmol
Mass mg
MS-ESI









200; 0.3
44; 0.36
470; 1.8
170; 1.2
188
760 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc).
















CR2













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DEAD mg; mmol
Mass mg
MS-ESI









200; 0.3
56; 0.37
470; 1.8
170; 1.2
202
788 [M + H]+





Chromato.-EtOAc/CH2Cl2 (50 to 100% EtOAc).
















CR3













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DEAD mg; mmol
Mass mg
MS-ESI









80; 0.12
20; 0.15
192; 0.73
70; 0.49
68
774 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc).
















CR4













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DEAD mg; mmol
Mass mg
MS-ESI









130; 0.2
36; 0.24
300; 1.13
100; 0.7
514
787 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 40% EtOAc)
















CR5













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DTAD mg; mmol
Mass mg
MS-ESI









327; 0.5
100; 0.6
786; 3
460; 2
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 50% EtOAc).
















CR6













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DEAD mg; mmol
Mass mg
MS-ESI









150; 0.23
53; 0.27
361; 1.38
0.145; 0.92
230
832 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc).
















CR7













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DEAD mg; mmol
Mass mg
MS-ESI









150; 0.23
42; 0.27
361; 1.38
0.145; 0.92
nd*
789 [M + H]+





Chromato.-EtOAc
















CR8













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DEAD mg; mmol
Mass mg
MS-ESI









150; 0.23
42; 0.27
360; 138
0.15; 90
nd*
789 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)
















CR9













R
Cf mg; mmol
Alcohol mg; mmol
Ph3P mg; mmol
DEAD mg; mmol
Mass mg
MS-ESI









nd*; 0.38
81; 0.55
724; 2.76
0.245; 1.55
94; 45%
nd*





Chromato.-EtOAc
















CR10















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









150;0.23
47;0.27
361;1.38
212;0.93
nd*
809[M +H]+





Chromato.-EtOAc/CH2Cl2 (0 to 70% EtOAc).
















CR11















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









150;0.23
42;0.27
361;1.38
212;0.93
nd*
789[M +H]+





Chromato.-EtOAc/CH2Cl2 (0 to 70% EtOAc).
















CR12















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









300;0.46
73;0.6
723;2.76
423;1.84
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 30% EtOAc).
















CR13















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









250;0.38
95;0.5
600;2.28
350;1.52
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 40% EtOAc).
















CR14















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









164;0.25
55;0.3
362;1.38
212;0.92
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 70% EtOAc)
















CR15















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









164;0.25
49;0.3
362;1.38
212;0.92
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)
















CR16















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









300;0.46
84;0.6
723;2.76
423;1.84
nd*
777[M +H]+





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR18















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


Cgx
mmol
mmol
mmol
mmol
mg
ESI









150;0.23
50;0.3
367;1.4
212;0.92
40
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)
















CR19















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









163;0.25
57;0.32
393;1.5
230;1.0
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)
















CR20















Alco-







Cf
hol
Ph3P
DTAD



mg;
mg;
mg;
mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









163;0.25
48;0.32
393;1.5
230;1.0
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)
















CR21














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









163; 0.25
56; 0.32
393; 1.5
230; 1.0
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)
















CR22














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









163; 0.25
56; 0.32
393; 1.5
230; 1.0
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)
















CR23














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









163; 0.25
61; 0.32
393; 1.5
230; 1.0
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)
















CR24














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









163; 0.25
61; 0.32
393; 1.5
230; 1.0
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)






CR25

The intermediate CR25 was prepared as follows:—




A solution of Cf (150 mg; 0.23 mmol) in DMF (3 ml) was cooled to 0° C. and treated with potassium t-butoxide (40 mg). The bromomethyl amide (82 mg; 0.35 mmol) was added and the mixture allowed to warm to room temperature for 1 h. The mixture was treated with sat. aq. NaHCO3 and extracted with CH2Cl2 The organic phase was washed with water, brine and dried over MgSO4. The crude product was used directly in the final step.










CR26














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









150; 0.23
48; 0.3
367; 1.4
212; 0.92
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR27














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









173; 0.26
45; 0.32
415; 1.58
243; 1.06
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR28














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









173; 0.26
50; 0.32
415; 1.58
243; 1.06
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR29














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









173; 0.26
49; 0.32
415; 1.58
243; 1.06
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR30














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









173; 0.26
44; 0.32
415; 1.58
243; 1.06
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR31














Cf mg;
Alcohol
Ph3P
DTAD
Mass
MS-


R
mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









173; 0.26
50; 0.32
415; 1.58
243; 1.06
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR32














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









173; 0.26
44; 0.32
415; 1.58
243; 1.06
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR33














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









173; 0.26
49; 0.32
415; 1.58
243; 1.06
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR34














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









173; 0.26
45; 0.32
415; 1.58
243; 1.06
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20 EtOAc).
















CR36














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









164; 0.25
52; 0.33
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (10 to 50 EtOAc).
















CR37














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









164; 0.25
60; 0.33
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (10 to 50 EtOAc).
















CR38














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









164; 0.25
70; 0.33
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (10 to 50 EtOAc).
















CR39














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









164; 0.25
60; 0.33
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (10 to 50 EtOAc).
















CR40














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









164; 0.25
63; 0.33
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (10 to 50 EtOAc).
















CR41














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









164; 0.25
45; 0.33
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (10 to 50 EtOAc).
















CR42














Cf
Alcohol
Ph3P
DTAD
Mass
MS-


R
mg; mmol
mg; mmol
mg; mmol
mg; mmol
mg
ESI









164; 0.25
44; 0.33
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (10 to 50 EtOAc).
















CR43














Cf mg;
Alcohol mg;
Ph3P mg;
DTAD mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









164; 0.25
46; 0.33
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (10 to 50 EtOAc).
















CR44














Cf mg;
Alcohol mg;
Ph3P mg;
DTAD mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









164; 0.25
75; 0.33
393; 1.5
230; 1
nd*
859 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)
















CR45














Cf mg;
Alcohol mg;
Ph3P mg;
DTAD mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









410; 0.62
130; 0.94
975; 3.72
570; 2.48
458(95%)
774 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)


1H NMR spectrum (DMSO d6): 1.16(d, 3H); 1.28(s, 6H); 1.42(m, 4H); 1.60(m, 4H); 2.28(s, 6H); 2.40(m, 2H); 3.06(m, 1H); 3.18(m, 2H); 3.45-3.75(m, 2H); 4.17(dd, 2H); 4.56(s, 2H); 4.86(s, 2H); 6.37(d, 2H); 6.61(d, 2H); 7.01(s, 3H); 8.08(d, 1H); 8.43(dd, 1H); 8.86(d, 1H); 11.8(s br, 1H).










solution of CR46 (108 mg; 0.14 mmol) in CH2Cl2 (2 ml) was cooled to 0° C. and treated with DIEA (27 μl; 0.154 mmol). A solution of the acid chloride (14 μl; 0.11 mmol) in CH2Cl2 (1 ml) was added and the mixture allowed to warm to room temperature. The crude mixture was deprotected as described for C47 above.











CR48


This intermediate was prepared using a method analogous to the preparation of CR47.














Cg46 mg;
DIEA μl;
Acid chloride

Mass
MS-


R
mmol
mmol
μl; mmol
CH2Cl2
mg
ESI









120; 0.15
29; 0.16
30; 0.36
3
nd*
nd*





Chromato.-EtOAc
















CR49














Cf mg;
Alcohol mg;
Ph3P mg;
DTAD mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









164; 0.25
50; 0.37
393; 1.5
230; 1
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 50% EtOAc)
















CR50


This intermediate was prepared using a method analogous to the preparation of CR47.














CR46 mg;
DIBA μl;
Acid chloride

Mass
MS-


R
mmol
mmol
μl; mmol
CH2Cl2
mg
ESI









630; 0.6
315; 1.8
95; 1.2
50
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 100% EtOAc)
















CR51


This intermediate was prepared using a method analogous to the preparation of CR47.














CR46 mg;
DIEA μl
Acid chloride

Mass
MS-


R
mmol
mmol
μl; mmol
CH2Cl2
mg
ESI









120; 0.15
100; 0.6
300 1M; 0.15
3
nd*
860 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 50% EtOAc)
















CR52


This intermediate was prepared using a method analogous to the preparation of CR47.














CR46

Acid






mg;
DIEA μl;
chloride** μl;

Mass
MS-


R
mmol
mmol
mmol
CH2Cl2
mg
ESI









88; 0.11
100; 0.6
50; 0.4
10
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 50% EtOAc)


**Cyclohexyl isocyanate was used in place of the correspondmg acid chloride.
















CR53














Cf mg;
Alcohol mg;
Ph3P mg;
DTAD mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









262; 0.4
102; 0.8
629; 2.4
368; 1.6
nd*
nd*





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)
















CR55














Cf mg;
Alcohol mg;
Ph3P mg;
DTAD mg;
Mass
MS-


R
mmol
mmol
mmol
mmol
mg
ESI









164; 0.25
70; 0.34
393; 1.5
230; 1
nd*
840 [M + H]+





Chromato.-EtOAc/CH2Cl2 (0 to 20% EtOAc)


*nd = not determined, partially purified Cgx used directly for final step.






Example 5
3-[2,2-dimethyl-3-oxo-3-(pyrrolidin-1-yl)propoxy]-4-[4-(2-pyrrolidin-1-yl-2-oxo-ethyl)piperzin-1-ylethyl]-5-(3,5-dimethylphenyl)-1H-pyrazole




solution of DR1 (350 mg; 0.53 mmol) in pyrrolidine (2 ml) was heated at 45° C. overnight. The pyrrolidine was evaporated and the residue purified by flash chromatography eluting with increasingly polar mixtures of MeOH/CH2Cl2 (0 to 7% MeOH) to give Example 5 as a colourless foam (288 mg).

Yield: 97%
1H NMR spectrum (CDCl3): 1.38 (s, 6H); 1.78 (m, 4H); 1.84 (m, 2H); 1.94 (m, 2H); 2.35 (s, 6H); 2.5-2.7 (m, 12H); 3.10 (s, 2H); 3.47 (t, 4H); 3.58 (m, 4H); 4.32 (s, 2H); 7.03 (s, 1H); 7.27 (s, 2H); 8.8 (s br, 1H).
MS-ESI: 565 [M+H]+
The starting material DR1 was prepared as follows:—




A solution of Ab5 (242 mg; 0.5 mmol) and 4-(4-aminobutyl)-pyridine (125 mg; 0.65 mmol) in DCE (5 ml) was treated with NaBH(OAc)3 (425 mg; 2.0 mmol). The mixture was stirred for 20 h and evaporated. The residue was treated with aq. K2CO3 (10%) and the mixture extracted with EtOAc. The organic phase was washed with water, brine and dried over MgSO4. The solution was evaporated to give pure DR1 as an white solid (350 mg).
Yield: 100%
1H NMR spectrum (CDCl3): 1.20 (s, 9H); 1.36 (s, 6H); 1.74 (s, 4H); 1.84 (m, 2H); 1.92 (m, 2H); 2.31 (s, 6H); 2.4-2.6 (m, 12H); 3.07 (s, 2H); 3.46 (t, 4H); 3.57 (m, 4H); 4.45 (s, 2H); 6.81 (s, 2H); 6.98 (s, 1H).
MS-ESI: 665 [M+H]+
Examples 5.1-5.2
The following Example 5.1 was prepared in a similar manner to Example 5 and Example 5.2 was prepared in a manner similar to Example 2.




the table shows the NRR′ group relating to the above structure, the reaction conditions and characteristics for each example, corresponding to the description of the preparation of Example 5 given above:—

Example 5.1















—NRR′
DR2 mg; mmol
Pyrrolidine ml; mmol
Prod. Form
Mass mg; Yield
MS-ESI











85; 0.14
2; 2.86
White glass
68; 96%
516 [M + H]+





Chromato.-MeOH/CH2Cl2 (7 to 10% MeOH)


1H NMR spectrum (CDCl3): 1.39(s, 6H); 1.70(s, 4H); 1.83(m, 2H); 2.35(s, 6H); 2.5-2.9(m, 7H); 3.0(m, 1H); 3.3(m, 1H); 3.58(m, 4H); 4.34(dd, 2H); 7.03(s, 1H); 7.04(s, 2H); 7.17(d, 2H); 8.48(d, 2H); 8.9(s br 1H).






Example 5.2















—NRR′
DR3 mg; mmol
CH2Cl2
Prod. Form
Mass mg; Yield
MS-ESI











194; 0.3
2
White solid
86; 52%
551 [M + H]+





Chromato.-LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (0 to 100% H2O)


1H NMR spectrum (CDCl3): 1.36(s, 6H); 1.74(m, 4H); 1.83(m, 4H); 2.32(s, 6H); 2.4-2.7(m, 20H); 3.56(m, 4H); 4.30(s, 2H); 7.01(s, 1H); 7.02(s, 2H); 8.8(s br 1H).






Intermediates for Examples 5.1-5.2, DR2-DR3 Respectively

Starting materials DR2-3 were prepared as follows, the table showing the reaction conditions and characteristics for each example, corresponding to the description of DR1 given above:—














DR2












—NRR′
Ab5 mg; mmol
Amine mg; mmol
NaBH(OAc)3 mg; mmol
Mass mg; Yield
MS-ESI









150; 0.31
60; 0.39
200; 0.93
117; 61%
616 [M + H]+





Chromato.-EtOAc then MeOH/CH2Cl2 (5% MeOH)


1H NMR spectrum (CDCl3): 1.20(s, 9H); 1.37(s, 6H); 1.70(s, 4H); 1.90(m, 2H); 2.30(s, 6H); 2.4-2.7(m, 7H); 2.9(m, 1H); 3.3(m, 1H); 3.56(m, 4H); 4.47(dd, 2H); 6.80(s, 2H); 6.99(s, 1H); 7.15(d, 2H); 8.48(d, 2H).
















DR3












—NRR′
Ab5 mg; mmol
Amine mg; mmol
NaBH4 mg; mmol
Mass mg; Yield
MS-ESI









265; 0.55
110; 0.6
38; 0.6 + AcOH 35 μM
194; 54%
651 [M + H]+





Chromato.-Ammonia in MeOH(7N)/CH2Cl2 (0 to 10% ammonia in MeOH).






Example 6
3-[2,2-dimethyl-3-oxo-3-(azabicyclo[2.2.1]heptan-7-yl)propoxy]-4-[4-(2-pyrrolidin-1-yl-2-oxo-ethyl)piperzin-1-ylethyl]-5-(3,5-dimethylphenyl)-1H-pyrazole




A solution of ER1 (160 mg; 0.23 mmol) in pyrrolidine (1 ml) was heated at 45° C. overnight. The pyrrolidine was evaporated and the residue purified by flash chromatography eluting with increasingly polar mixtures of MeOH/CH2Cl2 (5 to 10% MeOH) to give Example 6 as a white solid (141 mg).
Yield: 100%
1H NMR spectrum (CDCl3): 1.36 (s, 6H); 1.46 (m, 4H); 1.77 (m, 4H); 1.83 (m, 2H); 1.93 (m, 2H); 2.35 (s, 6H); 2.45-2.65 (m, 12H); 3.11 (s, 2H); 3.47 (m, 4H); 4.28 (s, 2H); 4.65 (s, 2H); 7.03 (s, 2H); 7.26 (s, 1H); 8.8 (s br, 1H).
MS-ESI: 591 [M+H]+
Starting material ER1 was prepared as follows:—




DMAP (100 mg; cat.) was added to a solution of Bb (4.0 g; 9.72 mmol) in a mixture of acetonitrile (175 ml) and CH2Cl2 (40 ml). The mixture was cooled to −10° C. and a solution of (BOC)2O (2.54 g; 11.66 mmol) in CH2Cl2 (50 ml) added dropwise during 1.5 h. The mixture was stirred for a further 2.5 h at −10° C. to −5° C. Water was added and the mixture stirred overnight at room temperature. The mixture was extracted with CH2Cl2 and the organic phase washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (20 to 80% EtOAc) to give the alcohol Ea as colourless crystals (2.4 g).
Yield: 48%
1H NMR spectrum (CDCl3): 1.20 (s, 9H); 1.34 (s, 6H); 1.45 (m, 4H); 1.77 (m, 4H); 2.32 (s, 6H); 2.42 (t, 2H); 3.63 (m, 2H); 4.42 (s, 2H); 4.65 (s, 2H); 6.83 (s, 2H); 7.00 (s, 1H)
MS-ESI: 512 [M+H]+
A solution of Ea (3.7 g; 7.23 mmol) and CBr4 (3.12 g; 9.4 mmol) in CH2Cl2 (150 ml) was cooled to 0° C. under argon. Solid PPh3 (2.84 g; 10.85 mmol) was added portionwise and the mixture allowed to warm to room temperature overnight. The mixture was directly purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 30% EtOAc) to give the bromide Eb as colourless crystals (3.01 g).
Yield: 73%
1H NMR spectrum (DMSO d6): 1.51 (s, 9H); 1.27 (s, 6H); 1.45 (m, 4H); 1.63 (m, 4H); 2.30 (s, 6H); 2.63 (t, 2H); 3.51 (t, 2H); 4.27 (s, 2H); 4.59 (s, 2H); 6.93 (s, 2H); 7.08 (s, 1H).
MS-ESI: 575 [M+H]+
A mixture of Eb (150 mg; 0.26 mmol) and 1-(pyrrolidinocarbonylmethyl)piperazine (108 mg; 0.548 mmol) in acetonitrile (5 ml) under argon was heated at 80° C. for 16 h. The solvent was evaporated and the residue was purified by flash chromatography eluting with increasingly polar mixtures of MeOH/CH2Cl2 (0 to 7% MeOH) to give ER1 as a beige powder (161 mg).
Yield: 89%
1H NMR spectrum (CDCl3): 1.20 (s, 9H); 1.34 (s, 6H); 1.46 (m, 4H); 1.77 (m, 4H); 1.85 (m, 2H); 1.94 (m, 2H); 2.32 (s, 6H); 2.35-2.6 (m, 12H); 3.01 (s, 2H); 3.46 (m, 4H); 4.42 (s, 2H); 4.65 (s, 2H); 6.82 (s, 2H); 7.00 (s, 1H).
MS-ESI: 691 [M+H]+
Examples 6.1-6.10
The following examples were prepared in a similar manner to Example 6,




the table shows the NRR′ group relating to the above structure, the reaction conditions and characteristics for each example, corresponding to the description of the preparation of Example 6 given above. The final two steps were carried out without purification or characterisation of the intermediates ER:—

Example 6.1















—NRR′
Eb mg; mmol
Piperazine mg; mmol
Pyrrolidine ml
Mass mg; Yield
MS-ESI











172; 0.3
116; 0.66
4
146; 85%
570 [M + H]+





Chromato.-Prep. LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (60% H2O)


1H NMR spectrum (DMSO d6): 1.24(s, 6H); 1.41(m, 4H); 1.61(m, 4H); 2.30(s, 6H); 2.3-2.6(m, 12H); 3.43(s, 2H); 4.14(s, 2H); 4.56(s, 2H); 7.01(s, 1H); 7.10(s, 2H); 7.3(m, 5H); 11.7(s br 1H).






Example 6.2















—NRR′
Eb mg; mmol
Piperazine mg; mmol
Pyrrolidine ml
Mass mg; Yield
MS-ESI











115; 0.2
94; 0.44
3
105; 87%
607 [M + H]+





Chromato.-Prep. LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (80% H2O)


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.31(s, 6H); 2.3-2.6(m, 12H); 3.10(s, 2H); 3.35-3.6(m, 8H); 4.15(s, 2H); 4.57(s, 2H); 7.02(s, 1H); 7.10(s, 2H); 11.7(s br 1H).






Example 6.3















—NRR′
Eb mg; mmol
Piperazine mg; mmol
Pyrrolidine ml
Mass mg; Yield
MS-ESI











115; 0.2
103; 0.44
3
96; 77%
627 [M + H]+





Chromato.-Prep. LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (80% H2O)


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.42(m, 4H); 1.61(m, 4H); 2.30(s, 6H); 2.3-2.6(m, 12H); 2.85(s br, 2H); 3.15(s br, 3H); 4.14(s, 2H); 4.57(s, 2H); 7.01(s, 1H); 7.09(s, 2H); 7.32(m, 3H); 7.41(m, 2H); 11.7(s br 1H).






Example 6.4















—NRR′
Eb mg; mmol
Piperazine mg; mmol
Pyrrolidine ml
Mass mg; Yield
MS-ESI











115; 0.2
84; 0.44
3
27; 25%
584 [M + H]+





Chromato.-Prep. LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (60% H2O)


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.42(m, 4H); 1.62(m, 4H); 2.31(s, 6H); 2.3-2.6(m, 14H); 2.70(t, 2H); 4.15(s, 2H); 4.56(s, 2H); 7.02(s, 1H); 7.11(s, 2H); 7.17(t, 1H) 7.21(d, 2H); 7.26(t, 2H); 11.7(s br 1H).






Example 6.5















—NRR′
Eb mg; mmol
Piperazine mg; mmol
Pyrrolidine ml
Mass mg; Yield
MS-ESI











115; 0.2
78; 0.44
3
98; 86%
571 [M + H]+





Chromato.-Prep. LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (80% H2O)


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.41(m, 4H); 1.61(m, 4H); 2.30(s, 6H); 2.3-2.6(m, 12H); 3.48(s, 2H); 4.14(s, 2H); 4.57(s, 2H); 7.01(s, 1H); 7.10(s, 2H); 7.30(d, 2H); 8.49(dd, 2H); 11.7(s br 1H).






Example 6.6















—NRR′
Eb mg; mmol
Piperazine mg; mmol
Pyrrolidine ml
Mass mg; Yield
MS-ESI











115; 0.2
90; 0.44
3
19; 16%
598 [M + H]+





Chromato.-Prep. LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9 (60% H2O)


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.42(m, 4H); 1.62(m, 4H); 1.69(m, 2H), 2.23(t, 2H); 2.30(s, 6H); 2.3-2.7(m, 14H); 4.14(s, 2H); 4.57(s, 2H); 7.01(s, 1H); 7.10(s, 2H); 7.17(m, 3H); 7.27(t, 2H); 11.7(s br 1H).






Example 6.7
















Eb mg;
Piperazine
Pyrrolidine
Mass mg;



—NRR′
mmol
mg; mmol
ml
Yield
MS-ESI











115; 0.2
96; 0.44
3
108; 88%
612 [M + H]+





Chromato.-Prep. LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9(60% H2O)


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.42(m, 6H); 1.54(m, 2H); 1.62(m, 4H); 2.23(t, 2H); 2.30(s, 6H); 2.3-2.6(m, 14H); 4.14(s, 2H); 4.57(s, 2H); 7.01(s, 1H); 7.10(s, 2H); 7.17(m, 3H); 7.27(t, 2H); 11.7(s br 1H).






Example 6.8
















Eb mg;
Piperazine
Pyrrolidine
Mass mg;



—NRR′
mmol
mg; mmol
ml
Yield
MS-ESI











115; 0.2
75; 0.44
3
91; 81%
563 [M + H]+





Chromato.-Prep. LC/MS H2O/MeCN buffered with ammonium carbonate at pH 8.9(80% H2O)


1H NMR spectrum (DMSO d6): 0.99(m, 1H); 1.15(m, 3H); 1.27(s, 6H); 1.45(m, 4H); 1.55-1.65(m, 8H); 1.85(t, 2H); 2.32(s, 6H); 2.3-2.6(m, 6H); 2.88(d 2H); 3.25(t, 2H); 3.86(m, 2H); 4.16(s, 2H); 4.59(s, 2H); 7.03(s, 1H); 7.12(s, 2H); 11.86(s br 1H).






Example 6.9
















Eb mg;
Piperazine
Pyrrolidine
Mass mg;



—NRR′
mmol
mg; mmol
ml
Yield
MS-ESI











230; 0.4
223; 0.84
10
234; 94%
623 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (CDCl3) + CD3OD): 1.26(m, 6H); 1.37(m, 4H); 1.60(m, 4H); 1.71(m, 1H); 1.97(m, 2H); 2.1(m, 1H); 2.27(s, 6H); 2.8-3.0(m, 4H); 3.15(m, 2H); 3.31 m, 1H); 3.61(m, 2H); 4.14(dd, 2H); 4.47(s, 2H); 6.96(s, 3H); 7.36(d, 2H); 7.52(d, 2H); 8.9(s br, 1H).






Example 6.10
















Eb mg;
Piperazine
Pyrrolidine
Mass mg;



—NRR′
mmol
mg; mmol
ml
Yield
MS-ESI











230; 0.4
113; 0.84
10
166; 79%
529 [M + H]+





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (CDCl3): 1.36(s, 6H); 1.43(m, 4H); 1.75(m, 4H); 2.33(s, 6H); 2.39(s, 3H); 2.6-2.8(m, 8H); 4.29(s, 2H); 4.64(s, 2H); 7.02(s, 1H); 7.05(s, 2H); 7.17(m, 3H); 7.26(m, 2H); 8.9(s br 1H).






Example 7
3-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.2]oct-2-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(3-methoxyphenyl)ethyl]-(2S)-propylamine




A mixture of FR (167 mg; 0.25 mmol), 3-(2-hydroxyethyl)-methoxybenzene (50 mg; 0.325 mmol) and triphenylphosphine (393 mg; 1.5 mmol) in THF (5 ml) at 0° C. under argon was treated with DTAD (230 mgl; 1.0 mmol). The mixture was allowed to warm to room temperature for 1 h when water was added. The mixture was extracted with CH2Cl2 and the organic phase was washed with water, brine and dried over MgSO4. The residue was taken up directly in CH2Cl2 (3 ml) and treated dropwise with n-propylamine (150 μl; 2.5 mmol). The mixture was stirred at room temperature for 1 h and then purified directly by flash chromatography eluting with increasingly polar mixtures of CH2Cl2 and then MeOH/CH2Cl2 (0 to 10% MeOH) to give Example 7 as a white foam (100 mg).
Yield: 70%
1H NMR spectrum (DMSO d6): 1.15 (d, 3H); 1.27 (s, 6H); 1.54 (m, 4H); 1.67 (m, 4H); 1.85 (s, 1H); 2.3 (s, 6H); 2.55-2.95 (m, 7H); 3.24 (m, 2H); 3.7 (s, 3H); 4.16 (m, 3H); 6.7 (m, 3H); 7.03 (s, 1H); 7.05 (s, 2H); 7.15 (t, 1H); 11.8 (s br, 1H).
MS-ESI: 573 [M+H]+
The starting material FR was prepared as follows:—




This preparation was exactly analogous to that of Examples 4 and 8
Yields and data are given in the following table:—













Com-





pound
Yield
MS-ESI
RMN







Fb
 85%
440
1H NMR spectrum(CDCl3): 1.19(d, 3H);




[M+H]+
1.36(s, 3H); 1.41(s, 3H); 1.65(m, 6H);





1.83(m, 2H); 1.94(s, 1H); 2.23(m, 1H); 2.35(s,





6H); 3.01(m, 1H); 3.42(m, 2H); 3.69(m,





1H); 3.78(m, 1H); 4.11(m, 1H); 4.21(m,





1H); 4.41(m, 1H); 7.03(s, 1H); 7.05(s, 2H);





8.9(s br 1H).


Fc
100%
540
1H NMR spectrum(CDCl3): 1.06(d, 3H);




[M+H]+
1.19(s, 9H); 1.36(s, 3H); 1.42(s, 3H);





1.56(m, 6H); 1.83(m, 2H); 1.94(s, 1H);





2.25(m, 1H); 2.35(s, 6H); 2.59(m, 1H);





3.41(m, 2H); 3.57(m, 1H); 3.67(m, 1H);





4.11(m, 1H); 4.30(m, 1H); 4.60(m, 1H);





6.84(s, 2H); 7.00(s, 1H).


Fd
 85%
439
1H NMR spectrum(DMSO d6): 1.16(d, 3H);




[M+H]+
1.27(s, 6H); 1.56(m, 4H); 1.68(m, 4H);





1.87(s, 1H); 2.31(s, 6H); 2.36(m, 2H);





2.72(m, 1H); 4.15(m, 3H); 7.02(s, 1H); 7.07(s,





2H); 8.9(s br 1H).


FR
 67%
669
1H NMR spectrum(DMSO d6): 1.10(d, 3H);




[M+H]+
1.25(s, 6H); 1.52(m, 4H); 1.67(m, 4H);





1.83(s, 1H); 2.29(s, 6H); 2.83(m, 1H);





3.19(m, 2H); 4.13(m, 3H); 6.96(s, 2H); 6.98(s,





1H); 8.12(d, 1H); 8.51(br s, 1H); 8.52(q,





1H); 8.79(d, 1H); 11.9(s br 1H).









A solution of Fd (1.12 g; 2.55 mmol) in CH2Cl2 (50 ml) was cooled to 0° C. under argon. DIEA (580 μl; 3.3 mmol) was added followed by a solution of DNOSCl (0.72 g; 2.68 mmol) in CH2Cl2 (10 ml). The mixture was allowed to warm to room temperature for 2 h and was treated with aq. HCl (1N). The mixture was extracted with CH2Cl2 and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of EtOAc/CH2Cl2 (0 to 40% EtOAc) to give FR as a yellow foam (1.14 g).
Yield: 67%
1H NMR spectrum (DMSO d6): 1.10 (d, 3H); 1.25 (s, 6H); 1.52 (m, 4H); 1.67 (m, 4H); 1.83 (s, 1H); 2.29 (s, 6H); 2.83 (m, 1H); 3.19 (m, 2H); 4.13 (m, 3H); 6.96 (s, 2H); 6.98 (s, 1H); 8.12 (d, 1H); 8.51 (br s, 1H); 8.52 (q, 1H); 8.79 (d, 1H); 11.9 (s br 1H).
MS-ESI: 669 [M+H]+
Starting material Fa was prepared as follows:—




A mixture of 8 (4.0 g; 22 mmol) and oxalyl bromide (9.5 g; 44 mmol) containing one drop of DMF was heated at 50° C. for 2 h and then cooled. The excess of oxalyl bromide was evaporated and the residue azeotroped with toluene to give crude 9 which was taken up directly in CH2Cl2 (30 ml) and cooled to 0° C. Diisopropylethylamine (40 ml; 200 mmol) was added followed by 2.2.2-azabicyclooctane (2.95 g; 20 mmol) in CH2Cl2 (20 ml). The mixture was allowed to warm to room temperature overnight and was diluted with CH2Cl2, washed with aq. HCl (2N), aq. NaOH (1, water, brine and dried over MgSO4. The residue was evaporated to give Fa as a beige solid (3.75 g).
Yield: 68%
1H NMR spectrum (CDCl3): 1.38 (s, 6H); 1.67 (m, 6H); 1.89 (m, 2H); 1.95 (s, 1H); 3.40 (m, 2H); 3.63 (s, 2H) 4.02 (s, 1H).
Example 7.1
The following example was prepared in a similar manner to Example 6,




The following example was prepared in a similar manner, the table shows the NRR′ group relating to the above structure, the reaction conditions and characteristics for each example, corresponding to the description of the preparation of Example 7 given above:—
Example 7.1


















Alcohol


nPrNH2
Mass



FR mg;
mg;
Ph3P mg;
DTAD mg;
μl;
mg;


—NRR′
mmol
mmol
mmol
mmol
mmol
Yield











300; 0.45
150; 0.9
707; 2.7
415; 1.8
265; 4.5
193; 73%





Chromato.-EtOAc


1H NMR spectrum (DMSO d6): 1.13(d, 3H); 1.27(s, 6H); 1.55(m, 4H); 1.68(m, 4H); 1.86(s, 1H); 2.3(s, 6H); 2.55-2.95(m, 7H); 3.31(m, 2H); 4.14(m, 3H); 5.93(s, 2H); 6.53(dd, 1H); 6.67(d, 1H); 6.74(d, 1H); 7.02(s, 1H); 7.05(s, 2H); 7.15(t, 1H); 11.74(s br, 1H).


MS-ESI: 587 [M + H]+






Example 8
3-[2,2-dimethyl-3-oxo-3-(azabicyclo[2.2.1]heptan-7-yl)propoxy]-4-[1-(3-methoxyphenethylaminomethyl)cycloprop-1-yl]-5-(3,5-dimethylphenyl)-1H-pyrazole




Example 8 was prepared in a similar manner to Example 7, the table shows the reaction conditions and characteristics corresponding to the description of the preparation of Example 7 given above:—


















Alcohol


nPrNH2
Mass



GR mg;
mg;
Ph3P mg;
DTAD mg;
μl;
mg;


—NRR′
mmol
mmol
mmol
mmol
mmol
Yield











166; 0.25
50; 0.33
393; 1.5
230; 1.0
270; 10
68; 48%





Chromato.-MeOH/CH2Cl2 (0 to 10% MeOH)


1H NMR spectrum (DMSO d6) : 0.42(m, 2H); 0.70(m, 2H); 1.25(s, 6H); 1.42(m, 4H); 1.62(m, 4H); 2.3(s, 6H); 2.6-2.85(m, 7H); 3.69(s, 3H); 4.14(s, 3H); 4.57(s, 2H); 6.71(m, 3H); 7.03(s, 1H); 7.15(t, 1H); 7.33(s, 2H); 11.74(s br, 1H).


MS-ESI: 571 [M + H]+






Starting material GR was prepared as follows:—







This preparation was exactly analogous to that of examples 4 and 7
Yields and data are given in the following table:—













Com-

MS-ESI



pound
Yield
[M+H]+
RMN







Ga
46%
245
1H NMR spectrum(DMSO d6): 0.47(m, 1H);





0.64(m, 1H); 0.85(m, 1H); 0.99(m, 1H);





2.35(s, 6H); 4.11(d, 1H); 4.41(d, 1H);





4.76(s, 1H); 7.36(s, 1H); 7.59(s, 2H).


Gb
87%
259
1H NMR spectrum(DMSO d6): 0.28(m, 2H);





0.72(m, 2H); 2.29(s, 6H); 3.5(s, 2H); 4.8(s





br, 1H); 6.96(s, 1H); 7.34(s, 2H); 9.3(s br,





1H); 11.74(s br, 1H).


Gc
69%
438
1H NMR spectrum(DMSO d6): 0.27(m, 2H);





0.70(m, 2H); 1.27(s, 6H); 1.42(m, 4H);





1.64(m, 4H); 2.3(s, 6H); 3.43(d, 2H);





4.14(s, 2H); 4.59(s, 2H); 4.64(t, 1H); 6.99(m,





1H); 7.41(s, 2H); 11.74(s br, 1H).


Gd
60%
538
1H NMR spectrum(DMSO d6): 0.17(m, 2H);





0.46(m, 2H); 1.14(s, 9H); 1.29(s, 6H);





1.45(m, 4H); 1.65(m, 4H); 2.3(s, 6H); 3.31(d,





2H); 4.23(s, 2H); 4.59(m, 3H); 7.01(s, 2H);





7.04(s, 1H).


Ge
65%
437
1H NMR spectrum(DMSO d6): 0.35(m, 2H);





0.67(m, 2H); 1.27(s, 6H); 1.43(m, 4H);





1.64(m, 4H); 2.3(s, 6H); 2.63(d, 2H);





4.15(s, 2H); 4.58(s, 2H); 6.99(m, 1H); 7.31(s,





2H); 11.74(s br, 1H).


GR
90%
667
1H NMR spectrum(DMSO d6): 0.38(m, 2H);





0.8(m, 2H); 1.28(s, 6H); 1.42(m, 4H);





1.62(m, 4H); 2.3(s, 6H); 3.17(m, 2H); 4.14(s,





2H); 4.57(s, 2H); 6.98(m, 1H); 7.27(s, 2H);





7.98(d, 1H); 8.51(dd, 1H); 8.76(d, 1H);





11.74(s br, 1H).









Example 9
3-[2,2-dimethyl-3-oxo-3-(azabicyclo[2.2.1]heptan-7-yl)propoxy]-4-(4-phenylpiperidin-1-ylmethyl)-5-(3,5-dimethylphenyl)-1H-pyrazole




A mixture of 4-phenyl piperidine (98 mg; 0.6 mmol) and formaldehyde (0.32 ml; 4.0 mmol; 37 wt % aqueous solution) in water (0.2 ml) and acetic acid (0.2 ml) was stirred for 5 min and treated with HR (74 mg; 0.2 mmol). The mixture was heated at 75° C. for 2 h. The solvents were evaporated, MeOH (0.5 ml), water (0.5 ml) and ammonia in MeOH(7N) (0.6 ml) were added and the mixture stirred for a further 3 h. The solvents were evaporated and the residue was purified by preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9 (80% H2O) to give Example 9 as a white solid (75 mg).
Yield: 69%
1H NMR spectrum (DMSO d6): 1.27 (s, 6H); 1.42 (m, 4H); 1.6 (m, 6H); 1.75 (m, 2H); 2.07 (m, 2H); 2.32 (s, 6H); 2.52 (m, 1H); 2.97 (m, 2H); 3.16 (s, 2H); 4.17 (s, 2H); 4.57 (s, 2H); 7.02 (s, 1H); 7.17 (t, 1H); 7.23 (d, 2H); 7.28 (t, 2H) 12.1 (s, 1H).
MS-ESI: 541 [M+H]+
The starting material HR was prepared as follows:—




A solution of 4-(3′,5′-dimethylphenyl)acetoacetate (12.36 g; 60 mmol) in EtOH (300 ml) was treated with hydrazine hydrate (5.82 ml; 120 mmol) and heated under reflux for 3 h. The EtOH was evaporated and the residue triturated with Et2O. The precipitate was collected, washed and dried to give Ha as a white powder (9.54 g).
Yield: 85%
1H NMR spectrum (DMSO d6): 2.28 (s, 6H); 5.83 (s, 1H); 6.93 (s, 1H); 7.27 (s, 2H); 9.5 (s br, 1H).
MS-ESI: 189 [M+H]+
A mixture of Ha (3.1 g; 16.5 mmol) and Ba (5.15 g; 19.8 mmol) in DMA (40 ml) under argon was treated with K2CO3 (4.56 g; 33.0 mmol). The mixture was stirred and heated at 70° C. for 5 h. The mixture was poured into sat. aq. NaHCO3, extracted with EtOAc and the organic phase was washed with water, brine and dried over MgSO4. The solid residue was recrystallised from toluene to give BR as a pale yellow solid (2.96 g).
Yield: 49%
1H NMR spectrum (DMSO d6): 1.24 (s, 6H); 1.41 (m, 4H); 1.63 (m, 4H; 2.29 (s, 6H); 4.09 (s, 2H); 4.57 (s, 2H); 6.08 (s, 1H) 6.97 (s, 1H); 7.31 (s, 2H).
MS-ESI: 368 [M+H]+
Examples 9.1-9.12
The following examples were prepared in a similar manner to Example 9,




the table shows the R group relating to the above structure, the reaction conditions and characteristics for each example, corresponding to the description of the preparation of Example 9 given above:—

Example 9.1



















Amine






HR mg;
Formaldehyde;
mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











74; 0.20
0.25; 3.0
131; 0.6
White solid
65; 54%
598 [M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(60% H2O).


1H NMR spectrum (DMSO d6): 1.25(s, 6H); 1.41(m, 6H); 1.53(m, 2H); 1.58(m, 4H); 2.29(s, 6H); 2.3-2.65(m, 12H); 3.01(s, 2H); 4.15(s, 2H); 4.56(s, 2H); 7.00(s, 1H); 7.17(m, 3H); 7.25(m, 2H); 7.44(s, 2H); 11.9(s br, 1H).






Example 9.2



















Amine






HR mg;
Formaldehyde;
mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











148; 0.40
0.32; 4.0
270; 2.0
White solid
81; 39%
529 [M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(60% H2O).


1H NMR spectrum (DMSO d6): 1.23(s, 6H); 1.41(m, 4H); 1.60(m, 4H); 1.73(m, 2H); 2.1(s, 3H); 2.27(s, 6H); 2.35(m, 2H) 2.5-2.7(m, 2H); 3.14(s, 2H); 4.14(s, 2H); 4.56(s, 2H); 6.99(s, 1H); 7.12(m, 3H); 7.23(m, 2H); 7.44(s, 2H); 11.9(s br, 1H).






Example 9.3



















Amine






HR mg;
Formaldehyde;
mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











80; 0.20
0.25; 3.0
82; 0.6
White solid
27; 26%
516 [M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(100 to 0% H2O).






Example 9.4



















Amine






HR mg;
Formaldehyde;
mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











80; 0.20
0.25; 3.0
132; 0.6
White solid
26; 22%
600 [M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(100 to 0% H2O).






Example 9.5

















HR mg;
Formaldehyde;
Amine mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











80; 0.20
0.25; 3.0
97; 0.6
Whitesolid
37; 34%
542[M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(100 to 0% H2O).






Example 9.6

















HR mg;
Formaldehyde;
Amine mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











80; 0.20
0.25; 3.0
102; 0.6
Whitesolid
21; 19%
549[M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(100 to 0% H2O).






Example 9.7

















HR mg;
Formaldehyde;
Amine mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











148;0.40
0.16; 2.0
298; 2.0
Whitesolid
nd*; nd*
543[M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(60% H2O).


1H NMR spectrum (DMSO d6): 1.24(s, 6H); 1.42(m, 6H); 1.54(m, 2H); 1.61(m, 4H); 2.06(s, 3H); 2.25(s, 6H); 2.31(m, 2H); 2.5-2.65(m, 2H); 3.12(s, 2H); 4.16(s, 2H); 4.56(s, 2H); 6.98(s, 1H); 7.13(m, 3H); 7.22(m, 2H); 7.42(s, 2H); 11.9(s br, 1H).






Example 9.8

















HR mg;
Formaldehyde;
Amine mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











148;0.40
0.16; 2.0
298; 2.0
gum
nd*; nd*
529[M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(60% H2O).


1H NMR spectrum (DMSO d6): 1.24(s, 6H); 1.42(m, 6H); 1.57(m, 6H); 2.28(s, 6H); 2.5-2.6(m, 4H); 3.45(s, 2H); 4.16(s, 2H); 4.55(s, 2H); 6.99(s, 1H); 7.14(m, 3H); 7.25(m, 2H); 7.30(s, 2H); 11.9(s br, 1H).






Example 9.9

















HR mg;
Formaldehyde;
Amine mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











74;0.20
0.08; 1.0
253; 1.0
gum
26; 24%
543[M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(80% H2O).


1H NMR spectrum (DMSO d6): 1.24(s, 6H); 1.29(m, 2H); 1.42(m, 6H); 1.53(m, 2H); 1.57(m, 4H); 2.29(s, 6H); 2.5-2.6(m, 4H); 3.46(s, 2H); 4.16(s, 2H); 4.56(s, 2H); 7.01(s, 1H); 7.15(m, 3H); 7.25(m, 2H); 7.30(s, 2H); 11.9(s br, 1H).






Example 9.10

















HR mg;
Formaldehyde;
Amine mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











74;0.20
0.08; 1.0
162; 1.2
Whitesolid
42; 20%
529[M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(80% H2O).


1H NMR spectrum (DMSO d6): 1.24(s, 6H); 1.41(m, 4H); 1.59(m, 4H); 1.69(m, 2H); 2.29(s, 6H); 2.3-2.65(m, 4H); 3.45(s, 2H); 4.16(s, 2H); 4.56(s, 2H); 7.01(s, 1H); 7.157(m, 3H); 7.23(m, 2H); 7.31(s, 2H); 11.9(s br, 1H).






Example 9.11

















HR mg;
Formaldehyde;
Amine mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











74;0.20
0.08; 1.0
232; 1.2
gum
47; 41%
573[M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(60% H2O).


1H NMR spectrum (DMSO d6): 1.24(s, 6H); 1.28(m, 2H); 1.41(m, 6H); 1.49(m, 2H); 1.60(m, 4H); 2.30(s, 6H); 2.3-2.65(m, xH); 3.44(s, 2H); 3.70(s, 3H); 4.16(s, 2H); 4.56(s, 2H); 6.81(d, 2H); 7.01(s, 1H); 7.04(d, 2H); 7.30(m, 2H); 11.9(s br, 1H).






Example 9.12

















HR mg;
Formaldehyde;
Amine mg;
Prod.
Mass mg;
MS-


R
mmol
ml; mmol
mmol
Form
Yield
ESI











74;0.20
0.08; 3.0
97; 0.6
Whitesolid
74; 69%
541[M + H]+





Chromato.-Preparative LC/MS chromatography with H2O/MeCN buffered with ammonium carbonate at pH 8.9(60% H2O).


1H NMR spectrum (DMSO d6): 1.34(m, 6H); 1.45(m, 5H); 1.75(m, 4H); 1.9(m, 1H); 2.31(m, 1H); 2.35(s, 6H); 2.5(m, 1H); 2.59(m, 2H); 2.68(m, 3H); 3.39(dd, 2H); 4.28(s, 2H); 4.65(s, 2H); 7.02(s, 1H); 7.16(m, 3H); 7.25(m, 2H); 7.34(s, 2H); 8.9(s br, 1H).






Example 10
2-[3-(2,2-dimethyl-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine




A solution of Example 4 (123 mg; 0.21 mmol) in THF (3 ml) under argon was treated with a solution of LiAlH4 (420 μl; 0.42 mmol; 1M solution in THF). The mixture was heated at 60° C. for 1 h. The mixture was treated with an excess of Glaubers' Salt (Na2SO4. 10H2O), filtered and evaporated. The residue was purified by flash chromatography eluting with increasingly polar mixtures of MeOH/CH2Cl2 (5 to 15% MeOH) to give Example 10 as a white solid (80 mg).
Yield: 68%
1H NMR spectrum (DMSO d6): 0.93 (s, 6H); 1.18 (d, 3H); 1.2 (m, 4H); 1.59 (m, 4H); 2.19 (s, 2H); 2.3 (s, 6H); 2.55-2.95 (m, 7H); 3.07 (s, 2H); 3.86 (s, 2H); 5.94 (s, 2H); 6.53 (d, 1H); 6.66 (s, 1H); 6.74 (d, 1H); 7.04 (s, 1H); 7.05 (s, 2H); 11.7 (s br 1H).
MS-ESI: 559 [M+H]+
Example 11
2-[3-(2,2-dimethyl-3-hydroxypropoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine




A solution of JR (109 mg; 0.17 mmol) in THF (2 ml) under argon was treated with a solution of LiAlH4 (350 ul; 0.35 mmol; 1M solution in THF). The mixture was heated at 60° C. for 1 h. The mixture was treated with an excess of Glaubers Salt (Na2SO4.10H2O), filtered and evaporated. The residue was purified by flash chromatography eluting with increasingly polar mixtures of MeOH/CH2Cl2 (0 to 15% MeOH) to give Example 11 as a white solid (68 mg).
Yield: 84%
1H NMR spectrum (DMSO d6): 0.92 (s, 6H); 1.17 (d, 3H); 2.3 (s, 6H); 2.5-2.9 (m, 7H); 3.27 (s, 2H); 3.86 (s, 2H); 4.61 (t br, 1H); 5.94 (s, 2H); 6.53 (d, 1H); 6.67 (s, 1H); 6.74 (d, 1H); 7.03 (s, 1H); 7.04 (s, 2H); 11.7 (s br 1H).
MS-ESI: 480 [M+H]+
Starting material JR was prepared as follows:—




A solution of Example 4 (205 mg; 0.35 mmol) in acetonitrile (2 ml) was treated with c.HCl (1 ml) and the mixture was stirred at room temperature for 2 h. The mixture was concentrated, extrated with CH2Cl2 and the organic phase was washed with water, brine and dried over MgSO4. The residue a was obtained as a yellow solid (218 mg). It was used directly in the final step of the synthesis of Example 11.
Yield: 80%
1H NMR spectrum (DMSO 4): 1.24 (m, 9H); 2.33 (s, 6H); 2.78 (m, 2H); 2.95 (m, 2H); 3.14 (m, 3H); 4.13 (m, 2H); 5.98 (s, 2H); 6.62 (d, 1H); 6.76 (s, 1H); 6.84 (d, 1H); 7.05 (s, 2H); 7.07 (s, 2H); 8.6 (s br, 1H); 11.7 (s br 1H).
MS-ESI: 494 [M+H]+
Example 12
2-[3-(2,2-dimethyl-3-oxo3-isopropoxy-propoxy)-5-(3,5-ditnethylphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine




A solution of JR (109 mg; 0.17 mmol) in CH2Cl2 (1 ml) was added to a solution of EDCl (37 mg; 0.19 mmol) and DMAP (5 mg; cat.) in iPrOH (5 ml). H2SO4 (5 drops; cat.) was added and the mixture was heated under reflux overnight over molecular sieves. The mixture was concentrated and extracted with CH2Cl2/water and the organic phase was washed with water, brine and dried over MgSO4. The residue was purified by flash chromatography eluting with increasingly polar mixtures of MeOH(CH2Cl2 (0 to 10% MeOH) to give Example 12 as a yellow gum (59 mg).
Yield: 65%
1H NMR spectrum (DMSO d6): 1.16 (m, 6H); 1.24 (m, 9H); 2.32 (s, 6H); 2.8 (m, 2H); 2.95 (m, 2H); 3.15 (m, 3H); 4.16 (dd, 2H); 4.88 (m, 1H); 5.98 (s, 2H); 6.62 (d, 1H); 6.74 (s, 1H); 6.83 (d, 1H); 7.04 (s, 2H); 7.07 (s, 2H); 11.7 (s br 1H).
MS-ESI: 536 [M+H]+
Therapeutic Uses
Compounds of Formula (I) are provided as medicaments for antagonising gonadotropin releasing hormone (GnRH) activity in a patient, eg, in men and/or women. To this end, a compound of Formula (I) can be provided as part of a pharmaceutical formulation which also includes a pharmaceutically acceptable diluent or carrier (eg, water). The formulation may be in the form of tablets, capsules, granules, powders, syrups, emulsions (eg, lipid emulsions), suppositories, ointments, creams, drops, suspensions (eg, aqueous or oily suspensions) or solutions (eg, aqueous or oily solutions). If desired, the formulation may include one or more additional substances independently selected from stabilising agents, wetting agents, emulsifying agents, buffers, lactose, sialic acid, magnesium stearate, terra alba, sucrose, corn starch, talc, gelatin, agar, pectin, peanut oil, olive oil, cacao butter and ethylene glycol.
The compound is preferably orally administered to a patient, but other routes of administration are possible, such as parenteral or rectal administration. For intravenous, subcutaneous or intramuscular administration, the patient may receive a daily dose of 0.1 mgkg−1 to 30 mgkg−1 (preferably, 5 mgkg−1 to 20 mgkg−1) of the compound, the compound being administered 1 to 4 times per day. The intravenous, subcutaneous and intramuscular dose may be given by means of a bolus injection. Alternatively, the intravenous dose may be given by continuous infusion over a period of time. Alternatively, the patient may receive a daily oral dose which is approximately equivalent to the daily parenteral dose, the composition being administered 1 to 4 times per day. A suitable pharmaceutical formulation is one suitable for oral administration in unit dosage form, for example as a tablet or capsule, which contains between 10 mg and 1 g (preferably, 100 mg and 1 g) of the compound of the invention.
Buffers, pharmaceutically acceptable co-solvents (eg, polyethylene glycol, propylene glycol, glycerol or EtOH) or complexing agents such as hydroxy-propyl β cyclodextrin may be used to aid formulation.
One aspect of the invention relates to the use of compounds according to the invention for reducing the secretion of LH and/or FSH by the pituitary gland of a patient. In this respect, the reduction may be by way of a reduction in biosynthesis of the LH and FSH and/or a reduction in the release of LH and FSH by the pituitary gland. Thus, compounds according to the invention can be used for therapeutically treating and/or preventing a sex hormone related condition in the patient. By “preventing” we mean reducing the patient's risk of contracting the condition. By “treating” we mean eradicating the condition or reducing its severity in the patient. Examples of sex hormone related conditions are: a sex hormone dependent cancer, benign prostatic hypertrophy, myoma of the uterus, endometriosis, polycystic ovarian disease, uterine fibroids, prostatauxe, myoma uteri, hirsutism and precocious puberty. Examples of sex hormone dependent cancers are: prostatic cancer, uterine cancer, breast cancer and pituitary gonadotrophe adenoma.
The compounds of the invention may be used in combination with other drugs and therapies used to treat/prevent sex-hormone related conditions.
If formulated as a fixed dose such combination products employ the compounds of this invention within the dosage range described herein and the other pharmaceutically-active agent within its approved dosage range. Sequential use is contemplated when a combination formulation is inappropriate.
In the field of medical oncology examples of such combinations include combinations with the following categories of therapeutic agent:
i) anti-angiogenic agents (for example linomide, inhibitors of integrin αvβ3 function, angiostatin, endostatin, razoxin, thalidomide) and including vascular endothelial growth factor (VEGF) receptor tyrosine kinase inhibitors (RTKIs) (for example those described in international patent applications publication nos. WO-97/22596, WO-97/30035, WO-97/32856 and WO-98/13354, the entire disclosure of which documents is incorporated herein by reference);
ii) cytostatic agents such as anti-oestrogens (for example tamoxifen, toremifene, raloxifene, droloxifene, iodoxyfene), progestogens (for example megestrol acetate), aromatase inhibitors (for example anastrozole, letrozole, vorazole, exemestane), anti-progestogens, anti-androgens (for example flutamide, nilutamide, bicalutamide, cyproterone acetate), inhibitors of testosterone 5α-dihydroreductase (for example finasteride), anti-invasion agents (for example metalloproteinase inhibitors like marimastat and inhibitors of uroidnase plasminogen activator receptor function) and inhibitors of growth factor function, (such growth factors include for example epidermal growth factor (EGF), platelet derived growth factor and hepatocyte growth factor such inhibitors include growth factor antibodies, growth factor receptor antibodies, tyrosine kinase inhibitors and serine/threonine kinase inhibitors);
iii) biological response modifiers (for example interferon);
iv) antibodies (for example edrecolomab); and
v) anti-proliferative/anti-neoplastic drugs and combinations thereof, as used in medical oncology, such as anti-metabolites (for example anti-floated like methotrexate, fluoropyrimidines like 5-fluorouracil, purine and adenosine analogues, cytosine arabinoside); anti-tumour antibiotics (for example anthracyclines like doxorubicin, daunomycin, epirubicin and idarubicin, mitomycin-C, dactinomycin, mithramycin); platinum derivatives (for example cisplatin, carboplatin); alkylating agents (for example nitrogen mustard, melphalan, chlorambucil, busulphan, cyclophosphamide, ifosfamide, nitrosoureas, thiotepa); anti-mitotic agents (for example vinca alkaloids like vincristine and taxoids like taxol, taxotere); enzymes (for example asparaginase); thymidylate synthase inhibitors (for example raltitrexed); topoisomerase inhibitors (for example epipodophyllotoxins like etoposide and teniposide, amsacrine, topotecan, irinotecan).
The compounds of the invention may also be used in combination with surgery or radiotherapy.
Assays
The ability of compounds according to the invention to act as antagonists of GnRH can be determined using the following in vitro assays.
Binding Assay Using Rat Pituitary GnRH Receptor
The assay is performed as follows:—

    1. Incubate crude plasma membranes prepared from rat pituitary tissues in a Tris.HCl buffer (pH. 7.5, 50 mM) containing bovine serum albumin (0.1%), [I-125]D-t-Bu-Ser6-Pro9-ethyl amide-GnRH, and the test compound. Incubation is at 4° C. for 90 minutes to 2 hours.
    2. Rapidly filter and repeatedly wash through a glass fibre filter.
    3. Determine the radioactivity of membrane bound radio-ligands using a gamma counter.


From this data, the IC50 of the test compound can be determined as the concentration of the compound required to inhibit radio-ligand binding to GnRH receptors by 50%.
Compounds according to the present invention have activity at a concentration from 1 nM to 5 μM.
Binding Assay Using Human GnRH Receptor
Crude membranes prepared from CHO cells expressing human GnRH receptors are sources for the GnRH receptor. The binding activity of compounds according to the invention can be determined as an IC50 which is the compound concentration required to inhibit the specific binding of [125I]buserelin to GnRH receptors by 50%. [125I]Buserelin (a peptide GnRH analogue) is used here as a radiolabelled ligand of the receptor.
Assay to Determine Inhibition of LH Release
The LH release assay can be used to demonstrate antagonist activity of compounds, as demonstrated by a reduction in GnRH-induced LH release.
Preparation of Pituitary Glands
Pituitary glands obtained from rats are prepared as follows. Suitable rats are Wistar male rats (150-200 g) which have been maintained at a constant temperature (eg, 25° C.) on a 12 hour light/12 hour dark cycle. The rats are sacrificed by decapitation before the pituitary glands are aseptically removed to tube containing Hank's Balanced Salt Solution (HBSS).
The glands are further processed by:—


    1. Centrifugation at 250×g for 5 minutes;
    2. Aspiration of the HBSS solution;
    3. Transfer of the glands to a petri dish before mincing with a scalpel;
    4. Transfer of the minced tissue to a centrifuge tube by suspending the tissue three successive times in 10 ml aliquots of IBSS containing 0.2% collagenase and 0.2% hyaluronidase;
    5. Cell dispersion by gentle stirring of the tissue suspension while the tube is kept in a water bath at 37° C.;
    6. Aspiration 20 to 30 times using a pipette, undigested pituitary fragments being allowed to settle for 3 to 5 minutes;
    7. Aspiration of the suspended cells followed by centrifugation at 1200×g for 5 minutes;
    8. Re-suspension of the cells in culture medium of DMEM containing 0.37% NaHCO3, 10% horse serum, 2.5% foetal bovine serum, 1% non essential amino acids, 1% glutamine and 0.1% gentamycin;
    9. Treatment of the undigested pituitary fragments 3 times with 30 ml aliquots of the collagenase and hyaluronidase;
    10. Pooling of the cell suspensions and dilution to a concentration of 3×105 cells/ml;
    11. Placing of 1.0 ml of this suspension in each of a 24 well tray, with the cells being maintained in a humidified 5% CO2/95% air atmosphere at 37° C. for 3 to 4 days

Testing of Compounds



The test compound is dissolved in DMSO to a final concentration of 0.5% in the incubation medium.
1.5 hours prior to the assay, the cells are washed three times with DMEM containing 0.37% NaHCO3, 10% horse serum, 2.5% foetal bovine serum, 1% non essential amino acids (100×), 1% glutamine (100×), 1% penicillin/streptomycin (10,000 units of each per ml) and 25 mM HEPES at pH 7.4. Immediately prior to the assay, the cells are again washed twice in this medium.
Following this, 1 ml of fresh medium containing the test compound and 2 nM GnRH is added to two wells. For other test compounds (where it is desired to test more than one compound), these are added to other respective duplicate wells. Incubation is then carried out at 37° C. for three hours.
Following incubation, each well is analysed by removing the medium from the well and centrifuging the medium at 2000×g for 15 minutes to remove any cellular material. The supernatant is removed and assayed for LH content using a double antibody radio-immuno assay. Comparison with a suitable control (no test compound) is used to determine whether the test compound reduces LH release. Compounds according to the present invention have activity at a concentration from 1 nM to 5 μM.

## Claims

1. A compound 2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethyiphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine or a salt, or in-vivo hydrolyzable ester thereof.

2. A pharmaceutical formulation comprising a compound, or salt, or in-vivo hydrolyzable ester thereof, according to claim 1 and a pharmaceutically acceptable diluent or carrier.

3. A method of antagonising gonadotropin releasing hormone activity in a patient, the method comprising administering a compound, or salt, or in-vivo hydrolysable ester thereof, according to claim 1 to a patient.

4. A process for the preparation of a compound of Formula (I) as defined in claim 1, comprising a process selected from (a) to (h) as follows:
(a) Reaction of a compound of formula XXXII with a compound of formula H—R5′ to form a compound of Formula (I),




 wherein X1 is selected from:




 L1 is a displaceable group; and
H—R5′ is selected from:





(b) Reaction of a compound of formula XXXIII with a compound of formula H—R5′′ to form a compound of Formula (I),




 wherein X2 is selected from:




 L2 is a displaceable group and R7a is selected from the definition of R7 or R22 above, and
L2-R5′′ is selected from:
L2-B—R8, L2-J-K—R8 and L2-R21 

(c) For compounds of Formula (I) wherein R3 is a group of Formula (IIa), (IIb), (IIc) or (IId) and R7 is other than part of a heterocyclic ring or hydrogen, reaction of a compound of Formula (I) wherein R3 is a group of Formula (IIa), (IIb), (IIc) or (IId) and R7 is hydrogen with a group of formula L3-R7a, wherein R7a is as defined above for R7 with the exclusion of hydrogen and L3 is a displaceable group;
(d) For compounds of Formula (I) wherein R3 is a group of Formula (IIe) or (IIf) and R21 is other than hydrogen, reaction of a compound of Formula (I) wherein R3 is a group of Formula (IIe) or (IIf) and R21 is hydrogen with a group of formula L4-R21a, wherein R21a is as defined above for R21 with the exclusion of hydrogen and L4 is a displaceable group;
(e) For compounds of Formula (I) wherein R3 is a group of Formula (IIe) or (IIf) and R22 is other than hydrogen, reaction of a compound of Formula (I) wherein R3 is a group of Formula (IIe) or (IIf) and R22 ishydrogen with a group of formula L5-R22a, wherein R22a is as defined above for R22 with the exclusion of hydrogen and L5 is a displaceable group;
(f) For compounds of Formula (I) wherein R3 is a group of Formula (IIc) or (IId) and the group




 together forms an optionally substituted nitrogen-containing heterocyclic ring containing 4-7 carbons atoms, reaction of a compound of Formula XXXIVa or XXXIVb, with a compound of Formula L6-K—R8, wherein L3 is a displaceable group




(g) For compounds of Formula (I) wherein R3is a group of Formula (IIc) or (IId), reaction of a compound of Formula XXXVa or XXXVb, with a compound of Formula L7-K′′—R8, wherein L7 is a displaceable group, and wherein the groups K′ and K′′ comprise groups which when reacted together form K,




(h) reaction of a compound of Formula XXXVI with a compound of the formula L8-R5, wherein L8 is a displaceable group




 and thereafter if necessary:
i) converting a compound of the Formula (I) into another compound of the Formula (I);
ii) removing any protecting groups;
iii) forming a salt, or in-vivo hydrolyzable ester.

5. A compound of Formula (I),



or a salt, or in-vivo hydrolyzable ester thereof, wherein
R1 hydrogen;
R2 is 3,5-dimethylphenyl;
M is —CH2—O—;
R5 is 2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy;
R3 is Formula (IIb),




 wherein,
R6 is hydrogen;
R6a is methyl;
R7 is hydrogen;
R8 is 1,3-benzodioxol-5-yl;
A is methylene; and
B is selected from ethylene and butylene.

6. A compound of Formula (I),




wherein
R1 is selected from: hydrogen, optionally-substituted C1-6alkyl, optionally substituted aryl or optionally-substituted arylC1-6alkyl;
R2 is optionally-substituted phenyl;
R3 is selected from a group of Formula (IIa) to Formula (IIf):




R5 is a group of Formula (III):




R1 and R6a are independently selected from hydrogen, fluoro, optionally substituted C1-6alkyl or R6 and R6a taken together and the carbon atom to which they are attached form a carbocyclic ring of 3-7 atoms
R7 is selected from: hydrogen, optionally-substituted C1-6alkyl, optionally-substituted arylC1-6alkyl, optionally-substituted aryl, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl, R9OC1-6alkyl-, R9R10NC1-6alkyl-, R9R10NC(O)C1-6alkyl, —C(NR9R10)═NH;
or when R3 is a group of Formula (IIc) or (IId) R7 is of the formula -J-K—R;

R8 is selected from:
(i) hydrogen, C1-6alkyl, C2-6alkenyl, C2-6alkynyl, haloC1-6alkyl, C1-4alkoxyC1-4alkyl, hydroxy, hydroxyC1-6alkyl, cyano, N—C1-4alkylamino, N,N-di-C1-4alkylamino, C1-6alkyl-S(On)—, —O—Rb, NRbRc, —C(O)—Rb, —C(O)O—Rb, —CONRbRc, NH—C(O)—Rb or —S(On)NRbRc, where Rb and Rc are independently selected from hydrogen and C1-4alkyl optionally substituted with hydroxy, amino, N—C1-4alkylamino, N,N-di-C1-4alkylamino, HO—-C2-4alkyl-NH— or HO—C2-4alkyl-N(C1-4alkyl)-;
(ii) nitro when B is a group of Formula (IV) and X is CH and p is 0;
(iii) C3-7cycloalkyl, aryl or arylC1-6alkyl each of which is optionally substituted by R12, R13 and R14;
(iv) -(Q)-aryl, -(Q)-heterocyclyl, -aryl-(Q)-aryl, each of which is optionally substituted by R12, R13 and R14 wherein -(Q)- is selected from E, F or a direct bond;
(v) heterocyclyl or heterocyclylC1-6alkyl each of which is optionally substituted by up to 4 substituents independently selected from R12, R13 and R14;
(vi) a group selected from R12, R13 and R14;
R9 and R10 are independently selected from: hydrogen, hydroxy, optionally substituted C1-6alkyl, optionally substituted aryl, optionally substituted arylC1-6alkyl, an optionally substituted carbocyclic ring of 3-7 atoms, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl or R9 and R10 taken together can form an optionally substituted ring of 3-9 atoms or R9 and R10 taken together with the carbon atom to which they are attached form a carbonyl group;
R11 is selected from: hydrogen, optionally substituted C1-6alkyl, or N(R9R10);
R12 is selected from: hydrogen, hydroxy, R17R18N(CH2)cc—, R17R18NC(O)(CH2)cc—, optionally substituted C1-6alkyl-C(O)N(R9)(CH2)cc—, optionally substituted C1-6alkyl-SO2N(R9)—, optionally substituted aryl-SO2N(R9)—, C1-3perfluoroalkyl-SO2N(R9)—; optionally substituted C1-6alkyl-N(R9)SO2—, optionally substituted aryl-N(R9)SO2—, C1-3perfluoroalkyl-N(R9)SO2— optionally substituted C1-6alkanoyl-N(R9)SO2—; optionally substituted aryl-C(O)N(R9)SO2—, optionally substituted C1-6alkyl-S(On)—, optionally substituted aryl-S(On)—, C1-3perfluoroalkyl-, C1-3perfluoroalkoxy, optionally substituted C1-6alkoxy, carboxy, halo, nitro or cyano;
R13 and R14 are independently selected from: hydrogen, hydroxy, oxo, optionally substituted C1-6alkyl, optionally substituted C1-6alkanoyl, optionally substituted C2-6alkenyl, cyano, nitro, C1-3perfluoroalkyl-, C1-3perfluoroalkoxy, optionally substituted aryl, optionally substituted aryl C1-6alkyl, R9O(CH2)s—, R9(O)O(CH2)s—, R9OC(O)(CH2)s—, R16S(On)(CH2)s—, R9R10NC(O)(CH2)s— or halo;
R15 is selected from: hydrogen, optionally substituted C1-6alkyl, R19OC(O)—, R9R10NC(O)—, R9C(O)—, R9S(On)—;
R16 is selected from: hydrogen, C1-6alkyl, C1-3perfluoroalkyl or optionally-substituted aryl;
R17 is independently selected from: hydrogen, hydroxy, cyano or optionally substituted C1-6alkyl;
R18 is a group of formula R18a—C(R9R10)0-1— wherein R18a is selected from: R19OC(O)—, R9R10NC(O)—, R9R10N—, R9C(O)—, R9C(O)N(R10)—, R9R10NC(O)—, R9R10NC(O)N(R10)—, R9SO2N(R10)—, R9R10NSO2N(R10)—, R9C(O)O—, R9OC(O)—, R9R10NC(O)O—, R9O—, R9S(On)—, R9R10NS(On)—, hydrogen, optionally substituted C1-6alkyl, optionally substituted heterocyclyl;
or R17 and R18 when taken together form an optionally substituted carbocyclic ring of 3-7 atoms or optionally substituted heterocyclyl;

R19 is selected from: hydrogen, optionally substituted C1-6alky, optionally substituted aryl, optionally substituted arylC1-6alkyl, optionally substituted C3-7cycloalkyl, optionally substituted heterocyclyl or optionally substituted heterocyclylC1-6alkyl;
R21 and R22 are independently selected from hydrogen, optionally substituted C1-6alkyl, optionally substituted C3-7cycloalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylC1-6alkyl, optionally substituted C3-6alkenyl, optionally substituted C3-6alkynyl, —(C1-5alkyl)aa-S(On)-—(C1-5alkyl)bb-; R9R10NC2-6alkyl, R9OC2-6alkyl or R9R10NC(O)C2-6alkyl, with the proviso that R9 and R10 independently or taken together are not optionally substituted aryl or optionally substituted arylC1-6alkyl; or
R21 and R22 taken together form an optionally substituted non-aromatic heterocyclic ring;
A is selected from a direct bond, optionally substituted C1-5alkylene, carbonyl or —C(O)—C(RdRd)—, wherein Rd is independently selected from a direct bond hydrogen and C1-2alkyl;
B is C1-6alkylene, C3-6alkenylene, —(C1-5alkyl)aa-O—(C1-5alkyl)bb-, —(C1-5alkyl)aa-C(O)—(C1-5alkyl)bb-, —(CH2)s1—C(O)N(R9)—, or the group




 forms an optionally substituted saturated C4-7heterocyclic ring, wherein aa and bb are independently 0 or 1 and wherein the combined length of (C1-5alkyl)aa, (C1-5alkyl)bb is less than or equal to C5alkyl and wherein C1-6alkylene is optionally substituted by hydroxy.
E is —O—, —S(On), —C(O)—, —NR15— or —C(R9R10)q;
F is -E(CH2)r—;
G is selected from: hydrogen, halo, N, O, S(On), C(O), C(R9R10)t, optionally substituted C2-6alkenylene, optionally substituted C2-6alkynylene or a direct bond to R18,
J is a group of the formula: —(CH2)s-L-(CH2)s— wherein when s is greater than 0, the alkylene group is optionally substituted,
or the group




 together forms an optionally substituted heterocyclic ring containing 4-7 carbons atoms;
K is selected from: a direct bond, —(CH2)s1—, —(CH2)s1—O—(CH2)s2—, —(CH2)s1C(O)—(CH2)s2—, —(CH2)s1S(On)—(CH2)s2—, —(CH2)s1N(R18)—(CH2)s2—, —(CH2)s1—C(O)N(R9)—(CH2)s2—, —(CH2)s1—N(R9)C(O)—(CH2)s2—, —(CH2)s1—N(R9)C(O)N(R9)—(CH2)s2—, —(CH2)s1—OC(O)—(CH2)s2—, —(CH2)s1—C(O)O—(CH2)s2—, —(CH2)s1—N(R9)C(O)O—(CH2)s2—, —(CH2)s1—OC(O)N(R9)—(CH2)s2—, —(CH2)s1—OS(On)—(CH2)s2—, or —(CH2)s1—S(On)—O—(CH2)s2—(CH2)s1—S(O)2N(R9)—(CH2)s2—, —(CH2)s1—N(R9)S(O)2—(CH2)s2—; wherein the —(CH2)s1— and —(CH2)s2— groups are independently optionally substituted by hydroxy or C1-4alkyl;
L is selected from optionally substituted aryl or optionally substituted heterocyclyl;
M is —(CH2)—O—;
n is an integer from 0 to 2;
p is an integer from 0 to 4;
q is an integer from 0 to 4;
r is an integer from 0 to 4;
s is an integer from 0 to 4;
s1 and s2 are independently selected from an integer from 0 to 4, and s1+s2 is less than or equal to 4;
t is an integer from 0 to 4;
aa and bb are independently 0 or 1;and
cc is an integer between 0 to 2;

with the proviso that
(i) when G is hydrogen or halo, then R17 and R18 are both absent;
(ii) when G is O, S(On), C(O) or C(R11R12)t then G is substituted by a single group independently selected from the definition of R17 or R18 and when G is a direct bond to R18 then G is substituted by a single group selected from R18;
(iii) when R3 is a group of Formula (IIb), B is a group of Formula (IV), R8 is selected from group (i) or (ii) above, R11 is a group of the formula N(R10R11) and R1, R2 and R5 are as defined above then R4 cannot be hydrogen;
(iv) R3 cannot be unsubstituted pyridyl or unsubstituted pyrimidinyl; and
(v) when R3 is pyrazolyl substituted by phenyl or pyrazolyl substituted by phenyl and acetyl, R5-M is hydroxyl or acetyloxy, R2 is unsubstituted phenyl, then cannot be hydrogen or acetyl;
or a salt, or in-vivo hydrolyzable ester thereof.

7. The compound of claim 6, wherein R1 is hydrogen.

8. The compound of claim 6, wherein R3 is selected from a group of Formula (IIa) or Formula (IIb).

9. The compound of claim 8, wherein B is optionally substituted C1-6alkylene.

10. The compound of claim 6, wherein R3 is selected from a group of Formula (IIc) or Formula (IId).

11. The compound of claim 10 wherein the group




together forms an optionally substituted heterocyclic ring containing 4-7 carbons atoms.

12. The compound according to claim 11 wherein K is selected from:
—(CH2)s—, —(CH2)s—O—(CH2)s—, —(CH2)s—C(O)—(CH2)s—, —(CH2)s—N(R18)—(CH2)s—, —(CH2)s—C(O)N(R18)—(CH2)s—, —(CH2)s—N(R18)C(O)—(CH2)s—, —(CH2)s—S(O)2N(R18)—(CH2)s—, or —(CH2)s—NHS(O)2—(CH2)s—.

13. The compound of claim 8 wherein R8 is selected from:
(i) hydrogen, C1-6alkyl, C2-6alkenyl, haloC1-6alkyl, hydroxy, cyano, C1-6alkylS(On)—, —O—Rb, C1-4alkoxyC1-4alkyl, —C(O)—Rb, C(O)O—Rb, —NH—C(O)—Rb, N,N-di-C1-4alkylamino, —S(On)NRbRc where Rb and Rc are independently selected from hydrogen and C1-6alkyl, and n is 0, 1 or 2;
(ii) -(Q)-aryl, optionally substituted by up to 3 groups selected from R12, R13 and R14;
(iii) C4-7heterocyclyl, optionally substituted by up to 3 groups selected from R12, R13 and R14, or
(iv) C3-7carbocyclyl, optionally substituted by up to 3 groups selected from R12, R13 and R14.

14. The compound of claim 6 wherein R5 is a group of Formula (III) wherein the group of Formula (III) is selected from any one of III-a to III-I;







wherein:
het represents an optionally substituted 3- to 8- membered heterocyclic ring containing from 1 to 4 heteroatoms independently selected from O , N and S;
R23 and R23a are independently selected from hydrogen, fluoro or optionally substituted C1-8alkyl; or R23 and R23a together with the carbon to which they are attached form an optionally substituted 3 to 7-membered cycloalkyl ring
R24 is selected from hydrogen, optionally substituted C1-8alkyl, optionally substituted aryl, —Rd—Ar, where Rd represents C1-8alkylene and Ar represents optionally substituted aryl, and optionally substituted 3- to 8-membered heterocyclic ring optionally containing from 1 to 3 further heteroatoms independently selected from O, N and S;
R25 is selected from hydrogen; optionally substituted C1-8alkyl and optionally substituted aryl;
or where the group of Formula (III) represents a group of Formula III-a , III-b or III-i, then the group NR24(—R25) represents an optionally substituted 3- to 8- membered heterocyclic ring optionally containing from 1 to 3 further heteroatoms independently selected from O, N and S;
or where the group of Formula (III) represents structure III-e, R24 and R25 together with the carbon to which they are attached represents an optionally substituted 3- to 8-membered heterocyclic ring optionally containing from 1 to 4 heteroatoms independently selected from O, N and S.

15. The compound of claim 6 wherein the optional substituents on R2 are selected from cyano, NReRf, optionally substituted C1-8alkyl, optionally substituted C1-8alkoxy or halo wherein Re and Rf are independently selected from hydrogen, C1-6alkyl or aryl.

16. The compound of claim 4 selected from:
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-pyrid-4-ylethyl]-(2S)-propylamine;
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-pyrid-4-ylbutyl]-(2S)-propylamine;
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[4-(4-methoxyphenyl)butyl]-(2S)-propylamine;
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(43-trifluoromethylphenyl)ethyl]-(2S)-propylamine;
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethylphenyl)-1H-pyrazol-4-yl]-N-[2-(4-fluorophenyl)ethyl]-(2S)-propylamine;
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethyiphenyl)-1H-pyrazol-4-yl]-N-[2-(3-methoxyphenyl)ethyl]-(2S)-propylamine;
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethyiphenyl)-1H-pyrazol-4-yl]-N-[2-(4-methoxyphenyl)ethyl]-(2S)-propylamine;
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.1]heptan-7-yl}propoxy)-5-(3,5-dimethyiphenyl)-1H-pyrazol-4-yl]-N-[2-(4-methylsulphonylaminophenyl)ethyl]-(2S)-propylamine; and
2-[3-(2,2-dimethyl-3-oxo-3-{azabicyclo[2.2.2]oct-2-yl}propoxy)-5-(3,5-dimethyiphenyl)-1H-pyrazol-4-yl]-N-[2-(1,3-benzodioxol-5-yl)ethyl]-(2S)-propylamine;
or a salt, or in-vivo hydrolyzable ester thereof.

17. A pharmaceutical formulation comprising a compound, or salt, or in-vivo hydrolyzable ester thereof, according to claim 4 and a pharmaceutically acceptable diluent or carrier.