Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: CN(C=O)C.[OH:6][CH2:7][CH2:8][C:9]1[CH:28]=[CH:27][C:12]([CH2:13][N:14]2[CH2:19][CH2:18][N:17]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:16][CH2:15]2)=[CH:11][CH:10]=1.[H-].[Na+].F[C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([CH3:38])[N:33]=1>O>[CH3:38][C:34]1[N:33]=[C:32]([O:6][CH2:7][CH2:8][C:9]2[CH:10]=[CH:11][C:12]([CH2:13][N:14]3[CH2:19][CH2:18][N:17]([C:20]([O:22][C:23]([CH3:25])([CH3:24])[CH3:26])=[O:21])[CH2:16][CH2:15]3)=[CH:27][CH:28]=2)[CH:37]=[CH:36][CH:35]=1
Reactant: Cc1cccc(F)n1
Reactant: CC(C)(C)OC(=O)N1CCN(Cc2ccc(CCO)cc2)CC1
Agent: [H-]
Agent: [Na+]
Solvent: CN(C)C=O
Solvent: O
Product: Cc1cccc(OCCc2ccc(CN3CCN(C(=O)OC(C)(C)C)CC3)cc2)n1

Procedure:
To a DMF (10 mL) solution of tert-butyl 4-[4-(2-hydroxyethyl)benzyl]piperazine-1-carboxylate (1.000 g) was added NaH (112 mg, 60% in mineral oil) at 0° C., then the resultant mixture was stirred for 1 hour. To the mixture was added 2-fluoro-6-methylpyridine (0.419 mL), then the resultant mixture was stirred at 70° C. over night. The mixture was poured into water, and extracted with AcOEt. The organic layer was washed with water and saturated aqueous NaCl, dried over anhydrous Na2SO4, and evaporated. The residue was purified by silica gel column chromatography (n-hexane/AcOEt=4/1 to 1/1) to afford tert-butyl 4-(4-{2-[(6-methylpyridin-2-yl)oxy]ethyl}benzyl)piperazine-1-carboxylate as a pale yellow amorphous powder (350 mg).
Reaction SMILES: C(OC([N:8]1[CH2:13][CH2:12][N:11]([C:14](=[O:28])[CH2:15][O:16][C:17]2[CH:22]=[CH:21][C:20]([N:23]3[CH:27]=[N:26][N:25]=[N:24]3)=[CH:19][CH:18]=2)[CH2:10][CH2:9]1)=O)(C)(C)C.[CH:29]1[C:38]2[C:33](=[CH:34][CH:35]=[CH:36][CH:37]=2)[CH:32]=[CH:31][C:30]=1[S:39](Cl)(=[O:41])=[O:40].O>C(Cl)Cl>[N:23]1([C:20]2[CH:19]=[CH:18][C:17]([O:16][CH2:15][C:14]([N:11]3[CH2:10][CH2:9][N:8]([S:39]([C:30]4[CH:31]=[CH:32][C:33]5[C:38](=[CH:37][CH:36]=[CH:35][CH:34]=5)[CH:29]=4)(=[O:41])=[O:40])[CH2:13][CH2:12]3)=[O:28])=[CH:22][CH:21]=2)[CH:27]=[N:26][N:25]=[N:24]1
Reactant: CC(C)(C)OC(=O)N1CCN(C(=O)COc2ccc(-n3cnnn3)cc2)CC1
Reactant: O=S(=O)(Cl)c1ccc2ccccc2c1
Solvent: O
Solvent: ClCCl
Product: O=C(COc1ccc(-n2cnnn2)cc1)N1CCN(S(=O)(=O)c2ccc3ccccc3c2)CC1
Temperature: 25 °C
Reaction time: 3 h
Yield: 71.1 %

Procedure:
In a two neck round bottom flask 2-(4-(1H-tetrazol-1-yl)phenoxy)-1-(piperazine-1-yl)ethanone hydrochloride (compound 3, 0.882 mmoles, 0.286 g, 1 eq) and 2-naphthalene sulfonylchloride (0.882 mmoles, 0.2 g, 1 eq) were charged in DCM (20 mL). TEA (2.646 moles, 0.267 g, 3 eq) was added drop wise to the reaction mixture over a period of 10 min at 0° C. The resulting mixture was stirred for 3 h at room temperature and monitored by TLC. After completion of the reaction, water (10 mL) was added and extracted with DCM (2×20 mL). The combined organic layers were washed with brine (1×20 mL), dried over anhydrous Na2SO4 and concentrated under reduced pressure. The crude product was purified by column chromatography (Silica gel 60-120, 3:7, Ethyl acetate/Hexane) to obtain the title compound (0.300 g, 71.09%) as an off-white solid.
Reaction SMILES: [F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:11])([F:10])[F:9])=[CH:4][C:3]=1[N+]([O-])=O.P(Cl)(Cl)(Cl)(Cl)[Cl:16]>O>[Cl:16][C:3]1[CH:4]=[C:5]([C:8]([F:11])([F:10])[F:9])[CH:6]=[CH:7][C:2]=1[F:1]
Reactant: O=[N+]([O-])c1cc(C(F)(F)F)ccc1F
Reactant: ClP(Cl)(Cl)(Cl)Cl
Solvent: O
Product: Fc1ccc(C(F)(F)F)cc1Cl

Procedure:
Nine parts of the 4-fluoro-3-nitrobenzotrifluoride of Example I, and six parts of phosphorous pentachloride were sealed tightly under a nitrogen atmosphere in a tubular reactor. The sealed reactor was heated in an oil bath for about two hours at 170°-180° C. The reaction mixture was poured into water and extracted with diethyl ether. The organic layer was dried and distilled at atmospheric pressure to yield 13.6 parts of 3-chloro-4-fluorobenzotrifluoride. The structure was confirmed by gas chromatography--mass spectrum, and by F19 and C13NMR analyses.
Reaction SMILES: [C:1]1([C:7]2[O:11][N:10]=[C:9]([C:12]([O:14][CH3:15])=[O:13])[CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Br:16]N1C(=O)CCC1=O>[N+]([O-])(O)=O.C(O)(=O)C>[Br:16][C:8]1[C:9]([C:12]([O:14][CH3:15])=[O:13])=[N:10][O:11][C:7]=1[C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1
Reactant: O=C1CCC(=O)N1Br
Reactant: COC(=O)c1cc(-c2ccccc2)on1
Solvent: CC(=O)O
Solvent: O=[N+]([O-])O
Product: COC(=O)c1noc(-c2ccccc2)c1Br
Yield: 77.8 %

Procedure:
A solution of methyl 5-phenylisoxazole-3-carboxylate (100 mg, 0.492 mmol) and N-bromosuccinimide (119 mg, 0.669 mmol) in 5% fuming nitric acid in acetic acid (2 mL) was heated to 150° C. for 10 minutes via microwave. The reaction mixture was concentrated and purified by silica gel chromatography with hexanes/ethyl acetate (10/1) to afford methyl 4-bromo-5-phenylisoxazole-3-carboxylate (108 mg). The compound had an HPLC ret. time=3.21 min.−Column: YMC S5 COMBISCREEN® 4.6×50 mm; Gradient time: 4 min; Flow rate=4 ml/min; Solvent A=10% MeOH−90% Water−0.2% H3PO4; Solvent B=90% MeOH−10% water−0.2% H3PO4; Start % B=0; Final % B=100. LC-MS: M+1=284+.
Reaction SMILES: [C:1]([C@@H:3]1[CH2:7][CH2:6][CH2:5][N:4]1[C:8](=[O:30])[CH2:9][N:10]([CH2:18][C:19]([N:21]1[CH2:29][C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[CH2:22]1)=[O:20])C(=O)OC(C)(C)C)#[N:2].Cl.O1CCOCC1.CCOCC>O1CCOCC1>[CH2:22]1[C:23]2[C:28](=[CH:27][CH:26]=[CH:25][CH:24]=2)[CH2:29][N:21]1[C:19](=[O:20])[CH2:18][NH:10][CH2:9][C:8]([N:4]1[CH2:5][CH2:6][CH2:7][C@H:3]1[C:1]#[N:2])=[O:30]
Reactant: CC(C)(C)OC(=O)N(CC(=O)N1Cc2ccccc2C1)CC(=O)N1CCC[C@H]1C#N
Agent: Cl
Solvent: CCOCC
Solvent: C1COCCO1
Product: N#C[C@@H]1CCCN1C(=O)CNCC(=O)N1Cc2ccccc2C1
Reaction time: 0.5 h
Yield: 113.2 %

Procedure:
The t-butyl (S)-[2-(cyanopyrrolidin-1-yl)-2-oxoethyl]-[2-(1,3-dihydrois oindol-2-yl)-2-oxoethyl]carbamate (280 mg) obtained above was dissolved in 1,4-dioxane (1.0 ml), and 4 N Hydrochloric acid/1,4-dioxane (1.0 ml) was added thereto and stirred for 30 minutes with ice cooling. Ether was added thereto, and precipitated crystals were collected by filtration and dried under reduced pressure to give a hydrochloride (240 mg, Y.: quant.) of the title compound.
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[C:4]([NH:9][NH2:10])[CH:5]=[CH:6][C:7]=1[F:8].[I:11][C:12]1[CH:17]=[CH:16][C:15]([N:18]2[CH2:23][CH2:22][CH:21]([C:24](=O)[C:25]([F:28])([F:27])[F:26])[C:20](=O)[C:19]2=[O:31])=[CH:14][CH:13]=1.C(O)C.Cl>C(OC(=O)C)C>[Cl:1][C:2]1[CH:3]=[C:4]([N:9]2[C:20]3[C:19](=[O:31])[N:18]([C:15]4[CH:16]=[CH:17][C:12]([I:11])=[CH:13][CH:14]=4)[CH2:23][CH2:22][C:21]=3[C:24]([C:25]([F:28])([F:26])[F:27])=[N:10]2)[CH:5]=[CH:6][C:7]=1[F:8]
Reactant: O=C1C(=O)N(c2ccc(I)cc2)CCC1C(=O)C(F)(F)F
Reactant: NNc1ccc(F)c(Cl)c1
Agent: Cl
Solvent: CCO
Solvent: CCOC(C)=O
Product: O=C1c2c(c(C(F)(F)F)nn2-c2ccc(F)c(Cl)c2)CCN1c1ccc(I)cc1
Temperature: 25 °C
Yield: 74.9 %

Procedure:
Part A. 3-chloro-4-fluorophenyl hydrazine (5.00 g, 31.14 mmol) and 1-(4-iodophenyl)-4-(trifluoroacetyl)-2,3-piperidinedione (12.8 g, 31.14 mmol) were added together with 120 mL of ethanol and 4 mL of hydrochloric acid (12 M). The mixture was stirred at reflux under N2 for overnight. The reaction was cooled down to rt. The solvents were removed, and the residue was dissolved in EtOAc (200 mL) and washed with water (100 mL×2) and brine (50 mL). It was then dried over Na2SO4 and concentrated. The residue was purified via flash chromatography on silica gel using 4:1 hexane:ethylacetate to give 1-(3-chloro-4-fluorophenyl)-6-[4-iodophenyl]-3-(trifluoromethyl)-1,4,5,6-tetrahydro-7H-pyrazolo[3,4-c]pyridin-7-one as a brown solid (12.5 g, 75% yield). LRMS (AP+): 536.1 (M+H)+. 1H NMR (CDCl3) δ 7.72 (d, 2H), 7.67-7.64 (m, 1H), 7.49-7.44 (m, 1H), 7.19 (t, 3H), 7.06 (d, 2H), 4.12 (t, 2H), 3.17 (t, 2H).
Reaction SMILES: Br[C:2]1[CH:3]=[C:4]([CH:9]=[C:10]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][N:13]=2)[CH:11]=1)[C:5]([O:7][CH3:8])=[O:6].CC1(C)C(C)(C)OB([C:26]([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)=[CH2:27])O1.C([O-])([O-])=O.[K+].[K+].O>COCCOC.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:28]1([C:26]([C:2]2[CH:3]=[C:4]([CH:9]=[C:10]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][N:13]=3)[CH:11]=2)[C:5]([O:7][CH3:8])=[O:6])=[CH2:27])[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1
Reactant: COC(=O)c1cc(Br)cc(-c2ccccn2)c1
Reactant: C=C(B1OC(C)(C)C(C)(C)O1)c1ccccc1
Agent: c1ccc([P](c2ccccc2)(c2ccccc2)[Pd]([P](c2ccccc2)(c2ccccc2)c2ccccc2)([P](c2ccccc2)(c2ccccc2)c2ccccc2)[P](c2ccccc2)(c2ccccc2)c2ccccc2)cc1
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: COCCOC
Solvent: O
Product: C=C(c1ccccc1)c1cc(C(=O)OC)cc(-c2ccccn2)c1

Procedure:
Methyl 3-bromo-5-(pyridin-2-yl)benzoate (137 mg, 0.47 mmol), 4,4,5,5-tetramethyl-2-(1-phenylvinyl)-1,3,2-dioxaborolane (162 mg, 0.70 mmol), Pd(PPh3)4 (19 mg, 0.023 mmol) and K2CO3 (195 mg, 1.41 mmol) were taken up in DME (5 mL) and water (1 mL) and heated to about 80° C. overnight. The reaction mixture was combined with water and the product was extracted into EtOAc (3×10 mL). The combined organic extracts were washed with water (1×10 mL), brine (1×10 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure. The crude residue was purified via automated flash chromatography (silica gel; 0 to 25% EtOAc in hexanes) to afford methyl 3-(1-phenylvinyl)-5-(pyridin-2-yl)benzoate. MS m/z=316 [M+1]+. Calc'd for C21H17NO2: 315.
Reaction SMILES: [Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH2:12][CH2:11][NH:10][C:9]2=[O:13])=[CH:4][CH:3]=1.[N:14]([O-])=[O:15].[Na+]>C(O)(=O)C.O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[CH2:12][CH2:11][N:10]([N:14]=[O:15])[C:9]2=[O:13])=[CH:6][CH:7]=1
Reactant: O=C1NCCN1c1ccc(Cl)cc1
Reactant: O=N[O-]
Agent: [Na+]
Solvent: CC(=O)O
Solvent: O
Product: O=NN1CCN(c2ccc(Cl)cc2)C1=O
Temperature: 25 °C
Reaction time: 6 h

Procedure:
In a solution of glacial acetic acid (2750 ml) and water (250 ml) was dissolved 150 g (0.75 mol) of 1-(4-chlorophenyl)-2-imidazolidinone with heating. The solution was cooled to room temperature, and sodium nitrite (70 g, 1.0 mol) in water (200 ml) was added dropwise over 1 hr. The mixture was stirred for another 6 hrs, diluted with water (1.5 l) and the product (137 g, 81%) was collected m.p. 154°-156°.
Reaction SMILES: [CH3:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[N:12]=[CH:11][CH:10]=[N:9]2)=[CH:4][C:3]=1[CH2:13]O.S(Cl)([Cl:17])=O>ClCCl>[Cl:17][CH2:13][C:3]1[CH:4]=[C:5]([N:8]2[N:12]=[CH:11][CH:10]=[N:9]2)[CH:6]=[CH:7][C:2]=1[CH3:1]
Reactant: Cc1ccc(-n2nccn2)cc1CO
Reactant: O=S(Cl)Cl
Solvent: ClCCl
Product: Cc1ccc(-n2nccn2)cc1CCl
Temperature: 25 °C
Reaction time: 1 h
Yield: 81.8 %

Procedure:
To a stirred solution of (2-methyl-5-(2H-1,2,3-triazol-2-yl)phenyl)methanol (100 mg, 0.53 mmol) in dichloromethane (5 mL), thionyl chloride (155 mg, 1.3 mmol) was added dropwise at 0° C. and stirred for 1 h. Then the mixture was allowed to warm to rt and stirred overnight. The reaction mixture was concentrated under reduced pressure at rt and dried under high vacuum to yield the title compound (90 mg, 83%). The compound was directly used for the next step without further purification. [TLC Rf=0.66 (ethyl acetate/hexane 30:70)].
Reaction SMILES: [Cl:1][C:2]1[CH:9]=[C:8]([Cl:10])[CH:7]=[CH:6][C:3]=1[CH:4]=O.[CH2:11]([O:13][C:14](=[O:21])[CH:15]=[C:16]([NH2:20])[O:17][CH2:18][CH3:19])[CH3:12]>>[CH2:11]([O:13][C:14]([C:15]1[CH:4]([C:3]2[CH:6]=[CH:7][C:8]([Cl:10])=[CH:9][C:2]=2[Cl:1])[CH:15]([C:14]([O:13][CH2:11][CH3:12])=[O:21])[C:16]([O:17][CH2:18][CH3:19])=[N:20][C:16]=1[NH2:20])=[O:21])[CH3:12]
Reactant: CCOC(=O)C=C(N)OCC
Reactant: O=Cc1ccc(Cl)cc1Cl
Product: CCOC(=O)C1=C(N)N=C(OCC)C(C(=O)OCC)C1c1ccc(Cl)cc1Cl
Yield: 68 %

Procedure:
Upon boiling a solution of 8.8 g of 2,4-dichlorobenzaldehyde and 15.9 g of 3-amino-3-ethoxyacrylic acid ethyl ester in 50 ml of alcohol for 6 hours, 2-amino-4-(2,4-dichlorophenyl)-6-ethoxy-4,5-dihydropyridine-3,5-dicarboxylic acid diethyl ester of melting point 98° C (ethyl acetate/ petroleum ether) is obtained. Yield: 68% of theory.
Reaction SMILES: [C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][NH:15][C:16]2[C:21]([C:22]([O:24]CC)=[O:23])=[CH:20][N:19]=[C:18]([Cl:27])[N:17]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Li+].[OH-].O.Cl>C1COCC1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][NH:15][C:16]2[C:21]([C:22]([OH:24])=[O:23])=[CH:20][N:19]=[C:18]([Cl:27])[N:17]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
Reactant: CCOC(=O)c1cnc(Cl)nc1NCC1CCN(C(=O)OC(C)(C)C)CC1
Agent: Cl
Agent: [Li+]
Agent: [OH-]
Solvent: O
Solvent: C1CCOC1
Product: CC(C)(C)OC(=O)N1CCC(CNc2nc(Cl)ncc2C(=O)O)CC1
Reaction time: 20 h
Yield: 97.2 %

Procedure:
To a solution of ethyl 4-((1-(tert-butoxycarbonyl)piperidin-4-yl)methylamino)-2-chloropyrimidine-5-carboxylate (0.390 g, 0.979 mmol) in THF (5 mL), aq. 1N LiOH (1.10 mL, 1.10 mmol) was added. After being stirred for 20 h, water (10 mL) was added. The solution was acidified with 1N HCl (2 mL) to pH 1-2. The product was extracted with EtOAc. The EtOAc solution was washed with brine, dried over Na2SO4, concentrated in vacuo to give 4-((1-(tert-butoxycarbonyl)piperidin-4-yl)methylamino)-2-chloropyrimidine-5-carboxylic acid as a solid (0.353 g).
Reaction SMILES: [CH2:1]([N:8]1[CH2:12][CH2:11][C:10]2([CH2:17][CH2:16][CH2:15][N:14]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH:13]2[CH2:25][OH:26])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH3:34][S:35](Cl)(=[O:37])=[O:36].C(=O)([O-])O.[Na+]>ClCCl>[CH2:1]([N:8]1[CH2:12][CH2:11][C:10]2([CH2:17][CH2:16][CH2:15][N:14]([C:18]([O:20][C:21]([CH3:22])([CH3:23])[CH3:24])=[O:19])[CH:13]2[CH2:25][O:26][S:35]([CH3:34])(=[O:37])=[O:36])[CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
Reactant: CC(C)(C)OC(=O)N1CCCC2(CCN(Cc3ccccc3)C2)C1CO
Reactant: CS(=O)(=O)Cl
Agent: O=C([O-])O
Agent: [Na+]
Solvent: CCN(CC)CC
Solvent: ClCCl
Product: CC(C)(C)OC(=O)N1CCCC2(CCN(Cc3ccccc3)C2)C1COS(C)(=O)=O
Temperature: 0 °C

Procedure:
A solution of 10 mmol of tert-butyl 2-benzyl-6-hydroxymethyl-2,7-diazaspiro[4.5]decane-7-carboxylate in 30 ml of dichloromethane is admixed at 0° C. with 15 mmol of triethylamine, followed by 11 mmol of methanesulphonyl chloride. The reaction mixture is stirred at 0° C. for an hour and then at room temperature for an hour. The reaction mixture is poured into saturated aqueous sodium hydrogen carbonate solution and extracted with dichloromethane. The combined organic extracts are washed with brine, dried with sodium sulphate and evaporated. From the residue the title compound is identified by means of flash chromatography (SiO2 60 F) on the basis of the Rf value.
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[CH:13]=[CH:12][N:11]([C:14]3[CH:15]=[CH:16][C:17]4[C:18]5[CH2:27][N:26](C(OC(C)(C)C)=O)[CH2:25][CH2:24][C:19]=5[N:20]([CH3:23])[C:21]=4[CH:22]=3)[C:10](=[O:35])[CH:9]=2)=[N:6][CH:7]=1.C1(N)C(F)=C(F)C(F)=C(N)C=1F.[ClH:48].Cl>>[ClH:1].[ClH:48].[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[CH:13]=[CH:12][N:11]([C:14]3[CH:15]=[CH:16][C:17]4[C:18]5[CH2:27][NH:26][CH2:25][CH2:24][C:19]=5[N:20]([CH3:23])[C:21]=4[CH:22]=3)[C:10](=[O:35])[CH:9]=2)=[N:6][CH:7]=1
Reactant: Cn1c2c(c3ccc(-n4ccc(-c5ccc(Cl)cn5)cc4=O)cc31)CN(C(=O)OC(C)(C)C)CC2
Agent: Cl
Agent: Nc1c(F)c(N)c(F)c(F)c1F
Product: Cn1c2c(c3ccc(-n4ccc(-c5ccc(Cl)cn5)cc4=O)cc31)CNCC2
Yield: 54 %

Procedure:
tert-Butyl 7-(4-(5-chloropyridin-2-yl)-2-oxopyridin-1(2H)-yl)-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (80 mg, 0.16 mmol) was deprotected and converted to the dihydrochloride salt according to the procedure of Example 30 (steps e and g) to provide the title compound (40 mg, 54%) as a white solid: 1H NMR (500 MHz, CD3OD) δ 8.74 (d, J=2.4 Hz, 1H), 8.06 (d, J=8.5 Hz, 1H), 8.02 (dd, J=8.7, 2.4 Hz, 1H), 7.86 (d, J=7.2 Hz, 1H), 7.64 (d, J=8.3 Hz, 1H), 7.58 (d, J=1.9 Hz, 1H), 7.37 (d, J=1.5 Hz, 1H), 7.27 (dd, J=8.5, 1.8 Hz, 1H), 7.15 (dd, J=8.4, 1.8 Hz, 1H), 4.50 (s, 2H), 3.75 (s, 3H), 3.68 (t, J=6.5 Hz, 2H), 3.22 (t, J=6.5 Hz, 2H); ESI MS m/z 391 [M+H]+; HPLC (Method B)>99% (AUC), tR=12.2 min.
Reaction SMILES: [N+:1]([O-:4])([O-])=[O:2].[K+].[OH:6][C:7]1[C:16]([OH:17])=[N:15][C:14]2[C:9](=[CH:10][CH:11]=[C:12]3[N:20]=[CH:19][S:18][C:13]3=2)[N:8]=1>S(=O)(=O)(O)O>[OH:6][C:7]1[C:16]([OH:17])=[N:15][C:14]2[C:9](=[CH:10][C:11]([N+:1]([O-:4])=[O:2])=[C:12]3[N:20]=[CH:19][S:18][C:13]3=2)[N:8]=1
Reactant: Oc1nc2ccc3ncsc3c2nc1O
Reactant: O=[N+]([O-])[O-]
Agent: O=S(=O)(O)O
Agent: [K+]
Product: O=[N+]([O-])c1cc2nc(O)c(O)nc2c2scnc12
Temperature: 0 °C
Reaction time: 4 h
Yield: 63.1 %

Procedure:
Finely powdered potassium nitrate (92 mg, 0.9 mmol) was added to a stirred and ice-cooled solution of 7,8-dihydroxythiazolo[5,4-f]quinoxaline (0.20 g, 0.9 mmol) in 5 ml of conc. sulfuric acid. The mixture was stirred at 0° C. for 30 min, then at room temperature for 4 h, and finally poured into ice/water. The resulting precipitate was isolated by filtration, washed with water, and dried giving 0.15 g (62%) of the nitro compound; m.p.>360° C., IR (KBr): 1680 cm-1 ; 1H-NMR (DMSO-d): 8.06 (s, 1H, ArH), 9.53 (s, 1H, ArH), 12.23 (broad s, 1H, OH), 12.76 (broad s, 1H, OH).
Reaction SMILES: Cl[C:2]1[CH:7]=[CH:6][C:5](=[O:8])[N:4]([CH2:9][C:10]([OH:12])=[O:11])[N:3]=1>CO.[Pd]>[O:8]=[C:5]1[N:4]([CH2:9][C:10]([OH:12])=[O:11])[N:3]=[CH:2][CH:7]=[CH:6]1
Reactant: O=C(O)Cn1nc(Cl)ccc1=O
Agent: [Pd]
Solvent: CO
Product: O=C(O)Cn1ncccc1=O
Temperature: 25 °C
Reaction time: 1 h

Procedure:
To a solution of [3-chloro-6-oxopyridazin-1(6H)-yl]acetic acid (1.00 g, 5.30 mmol) in methanol (40 ml) was added 100 mg of 10% Pd/C. After the reaction mixture was stirred at ambient temperature under a hydrogen balloon for 1 h, the palladium was filtered off through Celite®. The filtrate was concentrated in vacuo and purified by reverse phase HPLC (TMC Pro-Pac C18; 0-40% 0.1% trifluoroacetic acid in acetonitrile/0.1% trifluoroacetic acid in water gradient). Removal of the volatiles in vacuo afforded the title compound as a white crystalline solid. 1H NMR (D2O) δ: 8.06 (dd, J=3.9, 1.4 Hz, 1H), 7.56 (dd, J=9,4, 3.9 Hz, 1H), 7.12 (dd, J=9.4, 1.5 Hz, 1H), 4.95 (s, 2H). LC/MS 155.2 (M+1)+.
Reaction SMILES: [CH3:1][C:2]1([CH3:16])[C:10]2[C:9]3[CH:11]=[CH:12][CH:13]=[CH:14][C:8]=3[CH:7]=[CH:6][C:5]=2[N:4]=[C:3]1[CH3:15].[OH:17][S:18](O)(=[O:20])=[O:19]>[OH-].[Na+]>[S:18]([C:13]1[CH:12]=[CH:11][C:9]2[C:10]3[C:2]([CH3:16])([CH3:1])[C:3]([CH3:15])=[N:4][C:5]=3[CH:6]=[CH:7][C:8]=2[CH:14]=1)([OH:20])(=[O:19])=[O:17]
Reactant: CC1=Nc2ccc3ccccc3c2C1(C)C
Reactant: O=S(=O)(O)O
Agent: [Na+]
Agent: [OH-]
Product: CC1=Nc2ccc3cc(S(=O)(=O)O)ccc3c2C1(C)C
Temperature: 180 °C

Procedure:
1,1,2-Trimethyl-1H-benz[e]indole, 100 g. was added with stirring to 500 mL of concentrated H2SO4. The mixture was heated at 180° C. for 1/2 h, cooled to 60° C. and poured onto 2 Kg ice. Cautionsly 500 ml of 50% aqueous NaOH was added. After 24 hours at room temperature the solid was filtered off, and 500 mL of saturated aqueous Na2SO4 was added. The resulting solid precipitate was collected, added to the previously filtered solid, and recrystallized from 2 L of H2O. Yield 25 g after overnight vacuum drying at 50° C. The location of the sulfo group was determined as being the 7-position by proton nuclear magnetic resonance measurements.
Reaction SMILES: [N:1]1[CH:6]=[CH:5][C:4]([CH2:7][CH2:8][C:9]2[O:10][CH:11]=[CH:12][CH:13]=2)=[CH:3][CH:2]=1.[CH2:14](Br)[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.[BH4-].[Na+]>CN(C)C=O.C(O)C>[CH2:14]([N:1]1[CH2:6][CH:5]=[C:4]([CH2:7][CH2:8][C:9]2[O:10][CH:11]=[CH:12][CH:13]=2)[CH2:3][CH2:2]1)[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1
Reactant: c1coc(CCc2ccncc2)c1
Reactant: BrCc1ccccc1
Agent: [BH4-]
Agent: [Na+]
Solvent: CN(C)C=O
Solvent: CCO
Product: C1=C(CCc2ccco2)CCN(Cc2ccccc2)C1
Temperature: 25 °C
Reaction time: 1 h
Yield: 74.2 %

Procedure:
A solution of 1-(pyridin-4-yl)-2-(furan-2-yl)ethane (2 g, 11.6 mmol) in anhydrous dimethylformamide (5 ml) was treated with benzyl bromide (1.5 ml, 12.7 mmol) and the reaction stirred at room temperature for one hour. The reaction was diluted with ethanol (50 ml), treated with sodium borohydride (0.55 g, 14.5 mmol) and heated at reflux for one hour. The solvent was evaporated and the residue partitioned between ethyl acetate and water. The organic was separated, dried (Na2SO4) and evaporated to give crude product as a yellow oil. This material was triturated with diethyl ether to afford the title compound (2.3 g, 68%) as a colourless solid; δH (DMSO-d6) 1.92-2.10 (2H, m, tetrahydropyridinyl CH2), 2.14-2.30 (2H, m, CH2), 2.36-2.50 (2H, m, CH2), 2.60-2.82 (2H, m, tetrahydropyridinyl CH2), 2.84-2.90 (2H, m, tetrahydropyridinyl CH2), 3.50 (2H, br s, PhCH2N), 5.32-5.44 (1H, m, tetrahydropyridinyl 5-H), 6.02-6.10 (1H, m, furanyl H), 6.30-6.36 (1H, m, furanyl H), 7.16-7.36 (5H, m, ArH), and 7.44-7.52 (1H, m, furanyl H); m/z (CI+, NH3) 268 (M+1)+.
Reaction SMILES: [CH3:1][C:2]1[C:3]([OH:18])=[CH:4][N:5]2[C:10]=1[C:9]([O:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[N:8][CH:7]=[N:6]2.[N:19]1([CH2:25][CH2:26][CH2:27]O)[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CCOC(/N=N/C(OCC)=O)=O>O1CCCC1>[CH3:1][C:2]1[C:3]([O:18][CH2:27][CH2:26][CH2:25][N:19]2[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20]2)=[CH:4][N:5]2[C:10]=1[C:9]([O:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[N:8][CH:7]=[N:6]2
Reactant: OCCCN1CCCCC1
Reactant: Cc1c(O)cn2ncnc(Oc3ccccc3)c12
Agent: CCOC(=O)/N=N/C(=O)OCC
Agent: c1ccc(P(c2ccccc2)c2ccccc2)cc1
Solvent: C1CCOC1
Product: Cc1c(OCCCN2CCCCC2)cn2ncnc(Oc3ccccc3)c12
Temperature: 0 °C
Reaction time: 0.5 h
Yield: 71.6 %

Procedure:
To a mixture of 5-methyl-4-phenoxypyrrolo[2,1-f][1,2,4]triazin-6-ol (1.47 g, 6.1 mmol, for preparation see WO 0071129), 1-piperidinepropanol (1.74 g, 12.2 mmol) and triphenylphosphine (3.2 g, 12.2 mmol) in tetrahydrofuran (20 mL) at 0° C. under argon, was added DEAD (1.9 mL, 12.2 mmol). The resulting mixture was stirred at 0° C. for 30 min, and then at RT for 1 hr. The volatiles were removed in vacuo. The residue was purified by silica gel flash column chromatography using 5% (2M NH3 in MeOH)/20% ethyl acetate/CH2Cl2 to afford the desired product as beige solid (1.6 g, 72% yield). MS: (M+H)+=367.
Reaction SMILES: [OH:1][C:2]1[N:6]([CH3:7])[N:5]=[C:4]([C:8]([OH:10])=O)[CH:3]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CN(C=O)C.[CH2:40]([O:42][C:43](=[O:63])[C@H:44]([OH:62])[CH2:45][C@H:46]([NH2:61])[CH2:47][C:48]1[CH:53]=[CH:52][C:51]([C:54]2[CH:59]=[CH:58][CH:57]=[C:56]([Cl:60])[CH:55]=2)=[CH:50][CH:49]=1)[CH3:41].CCN(C(C)C)C(C)C>>[CH2:40]([O:42][C:43](=[O:63])[C@H:44]([OH:62])[CH2:45][C@H:46]([NH:61][C:8]([C:4]1[CH:3]=[C:2]([OH:1])[N:6]([CH3:7])[N:5]=1)=[O:10])[CH2:47][C:48]1[CH:53]=[CH:52][C:51]([C:54]2[CH:59]=[CH:58][CH:57]=[C:56]([Cl:60])[CH:55]=2)=[CH:50][CH:49]=1)[CH3:41]
Reactant: CCOC(=O)[C@H](O)C[C@H](N)Cc1ccc(-c2cccc(Cl)c2)cc1
Reactant: Cn1nc(C(=O)O)cc1O
Agent: CN(C)C(On1nnc2cccnc21)=[N+](C)C
Agent: F[P-](F)(F)(F)(F)F
Solvent: CCN(C(C)C)C(C)C
Solvent: CN(C)C=O
Product: CCOC(=O)[C@H](O)C[C@@H](Cc1ccc(-c2cccc(Cl)c2)cc1)NC(=O)c1cc(O)n(C)n1
Reaction time: 0.17 h
Yield: 27.3 %

Procedure:
5-Hydroxy-1-methyl-1h-pyrazole-3-carboxylic acid (122 mg, 862 μmol) and HATU (361 mg, 949 μmol) were combined in DMF (1.0 mL, 13 mmol) and stirred for 10 minutes. (2R,4R)-4-amino-5-(3′-chlorobiphenyl-4-yl)-2-hydroxypentanoic acid ethyl ester (30.0 mg, 86 μmol) and DIPEA (165 μL, 949 μmol) were added, and the resulting mixture was stirred at room temperature overnight. The mixture was then concentrated under reduced pressure and the residue was dissolved in 50% AcOH-water (1.5 mL), filtered, purified by reverse phase preparative HPLC, and lyophilized to yield the title compound (11.1 mg). MS m/z [M+H]+ calc'd for C24H26ClN3O5, 472.16. found 472.2.