Abstract:
Cyclohept[b]indolealkanoic acids and acid derivatives are disclosed. The compounds act as prostaglandin and thromboxane antagonists and are useful in treating asthma, diarrhea, hypertension, angina, platelet aggregation, cerebral spasm, premature labor, spontaneous abortion, dysmenorrhea and nephrotoxicity caused by cyclosporin A and as cytoprotective agents.

Description:
CROSS-REFERENCE 
     This is a continuation-in-part of Ser. No. 211,800, June 27, 1988, now U.S. Pat. No. 4,906,654, which is a continuation of Ser. No. 76,096, July 21, 1987, now U.S. Pat. No. 4,775,680. 
     U.S. Pat. No. 4,906,654 (Gillard et al.) is incorporated herein by reference in its entirety. 
    
    
     DESCRIPTION OF THE INVENTION 
     The present invention relates to novel compounds of Formula I: ##STR1## wherein: 
     A is --(CR 9  R 10 ) r  R 11  ; R 1 , R 2 , R 3 , R 4 , R 5  and R 6  are each independently selected from: 
     (1) hydrogen; 
     (2) alkyl having 1 to 6 carbon atoms; 
     (3) alkenyl having 2 to 6 carbon atoms; 
     (4) --(CH 2 ) n  M 
     wherein n is 0 to 3 and M is 
     a) --C(O)R 15  ; 
     b) --C(O)NR 17  R 17  ; 
     c) --CN; 
     d) --C(O)R 16  ; 
     e) --C(O)CH 2  OH (hydroxymethyl ketone); 
     f) --CF 3  ; 
     g) --R 14  ; 
     h) --tetrazole; 
     i) --OR 12  ; 
     j) --OC(O)R 16  ; 
     k) --OC(O)NR 17  R 17  ; 
     l) --OC(O)OR 18  ; 
     m) --SR 13  ; 
     n) --S(O)R 13  ; 
     o) --S(O) 2  R 13  ; 
     p) --S(O) 2  NR 17  R 17  ; 
     q) --NR 17  R 17  ; 
     r) --NHC(O)R 16  ; 
     s) --NHS(O) 2  R 13  ; 
     t) --N 3  ; 
     u) --NO 2  ; 
     v) --halogen. 
     each R 7  is independently H or C 1  to C 6  alkyl; 
     each is independently H or C 1  to C 6  alkyl; 
     each R 9  is independently H or Cl to C 6  alkyl; 
     each R 10  is independently H, OH, C 1  to C 4  alkoxy or C 1  to C 4  alkyl; 
     R 11  is --C(O)--C(O)R 20  ; CH 2  OH; CHO; tetrazole; --C(O)NHS(O) 2  R 13  ; NHS(O) 2  R 13  ;--C(O)CH 2  OH; --C(O)NR 17  R 17  or NHS(O) 2  OH; 
     each R 12  is independently H; C 1  to C 6  alkyl; benzyl; or R 14  ; 
     each R 13  is independently C 1  to C 6  alkyl, CF 3  or R 14  ; 
     each R 14  is independently phenyl, mono-substituted phenyl, or di substituted phenyl wherein the substituents are independently, C 1  to C 3  alkyl, C 1  to C 3  perfluoroalkyl, C 1  to C 3  alkoxy, halogen, CN, --C(O)OR 15 , or --CH 2  --C(O)OR 15  ; 
     each R 15  is independently H, phenyl, benzyl or C 1  to C 6  alkyl; 
     each R 16  independently is H, R 13  or (CH 2 ) m  C(O)OR 15  ; 
     each R 17  is independently R 12 , or two R 17  groups may be joined to form a 5- or 6-membered saturated ring optionally containing an oxygen atom or a second nitrogen atom, the latter being substituted by H or C 1  to C 6  alkyl; 
     each R 18  is independently C 1  to C 6  alkyl, benzyl or phenyl; 
     each R 19  is H, C 1  to C 6  alkyl, R 14 , R 21  or R 22  ; 
     R 20  is --(CH 2 ) t  --C(R 9 ) 2  --(CH 2 ) t  --R 23  ; 
     R 21  is --CH 2  --R 14  ; 
     R 22  is --CH 2  --CH 2  --R 14   
     R 23  is A) a monocyclic or bicyclic heterocyclic radical containing from 3 to 12 nuclear carbon atoms and 1 or 2 nuclear heteroatoms selected from N, S, or O and with each ring in the heterocyclic radical being formed of 5 to 6 atoms, or B) the radical W--R 24  ; 
     R 24  contains up to 21 carbon atoms and is (1) a hydrocarbon radical or (2) an acyl radical of an organic acyclic or monocyclic carboxylic acid containing not more than 1 heteroatom in the ring; 
     W is 0, S or NH; 
     m is 0 to 4 
     r is 0 to 6 and 
     t is 0 to 3. 
    
    
     The novel compounds in Table 1 are a further embodiment of the present invention. 
     
                                           TABLE 1__________________________________________________________________________Novel Cyclohept[6]indoleAlkanoic Acids ##STR2##                                       ICompound R.sup.1       R.sup.2          R.sup.5  R.sup.6                      R.sup.7                         R.sup.8                            (CR.sup.9 R.sup.10)r                                    R.sup.11__________________________________________________________________________1 (Ex. 1) 2-F   H  4&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H2 (Ex. 1) 2-F   H  4&#39;-Cl    H  H  H  10-CH.sub.2                                    CO.sub.2 H3 (Ex. 2) 2-F   H  4&#39;-Cl    H  H  H  r = 0   7-CO.sub.2 H4 (Ex. 3) 2-F   H  4&#39;-Cl    H  H  H  6-CH.sub.2                                    CO.sub.2 H5     H     H  H        H  H  H  7-CH.sub.2                                    CO.sub.2 H6     H     H  4&#39;-Cl    H  H  H  6-CH.sub.2                                    CO.sub.2 H7     2-F   4-F          4&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H8     2-F   4-F          4&#39;-Cl    H  H  H  6-CH.sub.2                                    CO.sub.2 H9     2-F   4-F          4&#39;-Cl    H  H  H  r = 0   7-CO.sub.2 H10    2-OMe 4-F          4&#39;-Cl    H  H  H  r = 0   6-CO.sub.2 H11    4-F   H  4&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H12    4-F   H  4&#39;-Cl    H  H  H  6-CH.sub.2                                    CO.sub.2 H13    4-SMe H  4&#39;-Cl    H  H  H  r = 0   7-CO.sub.2 H14    4-Ph  H  4&#39;-Cl    H  H  H  r = 0   6-CO.sub.2 H15    4-Me  H  4&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H16    4-Me  H  4&#39;-Cl    H  H  H  6-CH.sub.2                                    CO.sub.2 H17    4-Me  H  4&#39;-Cl    H  H  H  r = 0   7-CO.sub.2 H18    4-Me  H  4&#39;-Cl    H  H  H  r = 0   6-CO.sub.2 H19    2-F   4-F          2&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H20    2-F   4-F          2&#39;-Cl    H  H  H  6-CH.sub.2                                    CO.sub.2 H21    2-F   4-F          2&#39;-Cl    H  H  H  r = 0   7-CO.sub.222    2-F   4-F          2&#39;-Br    H  H  H  r = 0   6-CO.sub.2 H23    2-F   4-F          3&#39;-CF.sub.3                   H  H  H  7-CH.sub.2                                    CO.sub.2 H24    2-F   4-F          3&#39;-Cl    H  H  H  6-CH.sub.2                                    CO.sub.2 H25    2-F   4-F          3&#39;-Cl    H  H  H  r = 0   7-CO.sub.2 H26    2-F   4-F          3&#39;-Cl    H  H  H  r = 0   6-CO.sub.2 H27    2-F   4-F          2&#39;-Cl    4&#39;-Cl                      H  H  7-CH.sub.2                                    CO.sub.2 H28    2-F   4-F          2&#39;-Cl    4&#39;-Cl                      H  H  6-CH.sub.2                                    CO.sub.2 H29 (Ex. 7) 2-F   H  4&#39;-S(O).sub.2 Me                   H  H  H  6-CH.sub.2                                    CO.sub.2 H30    2-F   4-F          2&#39;-Cl    4&#39;-Cl                      H  H  r = 0   6-CO.sub.2 H31    2-F   4-F          3&#39; -Cl   4&#39;-Cl                      H  H  7-CH.sub.2                                    CO.sub.2 H32    2-F   4-F          3&#39;-Cl    4&#39;-Cl                      H  H  6-CH.sub.2                                    CO.sub.2 H33    2-F   4-F          3&#39;-Cl    4&#39;-Cl                      H  H  r = 0   7-CO.sub.2 H34    2-F   4-F          3&#39;-Cl    4&#39;-Cl                      H  H  r = 0   6-CO.sub.2 H35    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  6-CH.sub.2                                    CO.sub.2 H36 (Ex. 4) 2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H37    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  r = 0   7-CO.sub.2 H38    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  r = 0   6-CO.sub.2 H39    2-F   4-F          4&#39;-SMe   H  H  H  7-CH.sub.2                                    CO.sub.2 H40    2-F   4-F          4&#39;-SMe   H  H  H  6-CH.sub.2                                    CO.sub.2 H41    2-F   4-F          4&#39;-SMe   H  H  H  r = 0   7-CO.sub.2 H42    2-F   4-F          4&#39;-SMe   H  H  H  r = 0   6-CO.sub.2 H43    2-F   4-F          4&#39;-S(O)Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H44    2-F   4-F          4&#39;-S(O)Me                   H  H  H  6-CH.sub. 2                                    CO.sub.2 H45    2-F   4-F          4&#39;-S(O)Me                   H  H  H  r = 0   7-CO.sub.2 H46    2-F   4-F          4&#39;-S(O)Me                   H  H  H  r = 0   6-CO.sub.2 H47    2-F   4-F          4&#39;CF.sub.3                   H  H  H  7-CH.sub.2                                    CO.sub.2 H48    2-F   4-F          4&#39;CF.sub.3                   H  H  H  6-CH.sub.2                                    CO.sub.2 H49    2-F   4-F          4&#39;-CF.sub.3                   H  H  H  r = 0   7-CO.sub.2 H50    2-F   4-F          4&#39;-CF.sub.3                   H  H  H  r = 0   6-CO.sub.2 H51    2-F   4-F          4&#39;-F     H  H  H  7-CH.sub.2                                    CO.sub.2 H52    2-F   4-F          2&#39;-F     4&#39;F                      H  H  7-CH.sub.2                                    CO.sub.2 H53 (Ex. 5) 2-F   4-F          4&#39;-C(O)Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H54    2-F   4-F          4&#39;-C(O)Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H55 (Ex. 6) 2-F   4-F          4&#39;-S(O).sub.2 NMe.sub.2                   H  H  H  7-CH.sub.2                                    CO.sub.2 H56    2-F   4-F          3&#39;-S(O).sub.2 NMe.sub.2                   H  H  H  6-CH.sub.2                                    CO.sub.2 H57    2-F   4-F          4&#39;-C(O)NMe.sub.2                   H  H  H  7-CH.sub.2                                    CO.sub.2 H58    2-F   4-F          4&#39;-C(O)Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H59    2-F   4-F          4&#39;-C(O)Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H60    2-F   4-F          4&#39;NHC(O)Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H61    2-F   4-F          4&#39;NHS(O).sub.2 Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H62    2-F   4-F          4&#39;NHC(O)NHMe                   H  H  H  6-CH.sub.2                                    CO.sub.2 H63    2-F   4-F          4&#39;OMe    H  H  H  7-CH.sub.2                                    CO.sub.2 H64    2-F   4-F          4&#39;OCH.sub.2 CO.sub.2 H                   H  H  H  7-CH.sub.2                                    CO.sub.2 H65    2-F   4-F          4&#39;-H     H  H  H  7-CH.sub.2                                    CO.sub.2 H66    2-F   4-F          4&#39;-Br    H  H  H  7-CH.sub.2                                    CO.sub.2 H67    2-F   4-F          4&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H68    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  7-CH.sub.2                                    CH.sub.2 OH69    2-F   4-F          4&#39;-Cl    H  H  H  7-CH.sub.2                                    CHO70    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  7-CH.sub.2                                    CHO71    2-F   4-F          4&#39;-Cl    H  H  H  7-CH.sub.2                                    Tetrazol-5-yl)72    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  7-CH.sub.2                                    Tetrazol-5-yl)73    2-F   4-F          4&#39; -Cl   H  H  H  6-CH.sub.2                                    Tetrazol-5-yl)74    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  6-CH.sub.2                                    Tetrazol-5-yl)75    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  r = 0   7-(Tetrazol-5-yl)76    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  r = 0   7-(Tetrazol-5-yl)77    2-F   4-F          4&#39;-Cl    H  H  H  7-CH.sub.2                                    CONHS(O).sub.2 Ph78    2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  7-CH.sub.2                                    CONH.sub.279    2-F   4-F          4&#39;-Cl    H  H  H  7-CH.sub.2                                    NHS(O).sub.2 OH80    2-F   4-F          4&#39;-C(O)Me                   H  H  H  6-CHMe  CO.sub.2 H81    2-F   4-F          4&#39;-NO.sub.2                   H  H  H  6-CMe.sub.2                                    CO.sub.2 H82    2-F   4-F          4&#39;-S(O).sub.2 NMe.sub.2                   H  H  H  6-(CH.sub.2).sub.2                                    CO.sub.2 H83    2-F   4-F          4&#39;-Cl    H  H  H  6-(CH.sub.2).sub.2                                    CO.sub.2 H84    2-F   4-F          4&#39;-Cl    H  7-Me                         H  7-CH.sub.2                                    CO.sub.2 H85    2-F   4-F          4&#39;-Cl    H  6-Me                         H  7-CH.sub.2                                    CO.sub.2 H86    2-F   4-F          4&#39;-Cl    H  H  Me 7-CH.sub.2                                    CO.sub.2 H87    2-F   4-F          4&#39;-Cl    H  H  H  8-CH.sub.2                                    CO.sub.2 H88    2-F   4-F          4&#39;-Cl    H  H  H  9-CH.sub.2                                    CO.sub.2 H89    2-F   4-F          4&#39;-Cl    H  H  H  cycloprop-1-yl                                    CO.sub.2 H90    2-F   4-F          4&#39;-Cl    H  H  H  7-CH-(c-C.sub.3 H.sub.5)                                    CO.sub.2 H91    2-SMe H  4&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H92    2-S(O)Me       H  4&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H93    S-2(O).sub.2 Me       H  4&#39;-Cl    H  H  H  7-CH.sub.2                                    CO.sub.2 H  (-)94 isomer 2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H  (+)95 isomer 2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  7-CH.sub.2                                    CO.sub.2 H  (-)96 isomer 2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  6-CH.sub.2                                    CO.sub.2 H  (+)97 isomer 2-F   4-F          4&#39;-S(O).sub.2 Me                   H  H  H  6-CH.sub.2                                    CO.sub.2 H__________________________________________________________________________ 
    
     In Table I R 3  ═H and R 4  ═H.