Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [C:1]([C:3](=[CH:9]OCC)[C:4]([O:6][CH2:7][CH3:8])=[O:5])#[N:2].Cl.[CH:14]([NH:17][NH2:18])([CH3:16])[CH3:15].C(=O)([O-])[O-].[K+].[K+]>C(O)C.CO>[NH2:2][C:1]1[N:17]([CH:14]([CH3:16])[CH3:15])[N:18]=[CH:9][C:3]=1[C:4]([O:6][CH2:7][CH3:8])=[O:5]
Reactant: CCOC=C(C#N)C(=O)OCC
Reactant: CC(C)NN
Agent: Cl
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: CCO
Solvent: CO
Product: CCOC(=O)c1cnn(C(C)C)c1N
Yield: 93.7 %

Procedure:
A mixture of ethyl 2-cyano-3-ethoxyacrylate (84.4 g, 0.50 mol), isopropyl hydrazine hydrochloride (55.2 g, 0.50 mol) and potassium carbonate (68.8 g, 0.50 mol) in 90% ethanol/methanol (1.5 L) was heated under reflux for 16 hours. The solvent was then removed in vacuo and water and ethyl acetate were added. The mixture was separated and the organic layer was dried over magnesium sulfate, filtered and the solvent was removed in vacuo to yield ethyl 5-amino-1-isopropyl-1H-pyrazole-4-carboxylate (92.4 g, 94%). +ESI (M+H) 198.1; 1H NMR (400 MHz, CDCl3, δ): 7.63 (s, 1H), 4.97 (br.s., 2H), 4.28 (q, 2H), 4.18 (m, 1H), 1.45 (d, 6H), 1.31 (t, 3H).
Reaction SMILES: [Cu][C:2]#[N:3].Br[C:5]1[CH:6]=[C:7]([CH:12]=[CH:13][C:14]=1[CH3:15])[C:8]([O:10][CH3:11])=[O:9]>CN(C=O)C.CCOC(C)=O>[C:2]([C:5]1[CH:6]=[C:7]([CH:12]=[CH:13][C:14]=1[CH3:15])[C:8]([O:10][CH3:11])=[O:9])#[N:3]
Reactant: N#C[Cu]
Reactant: COC(=O)c1ccc(C)c(Br)c1
Solvent: CCOC(C)=O
Solvent: CN(C)C=O
Product: COC(=O)c1ccc(C)c(C#N)c1
Temperature: 140 °C
Reaction time: 12 h
Yield: 61.2 %

Procedure:
A mixture of copper (I) cyanide (510 mg, 5.69 mmol) and DMF (16 mL) was heated to 140 ° C. The reaction was added methyl 3-bromo-4-methylbenzoate (505 mg, 2.2 mmol) in DMF (10 mL) and heating was continued for 12 h. The reaction was cooled, diluted with EtOAc (125 mL) and washed with H2O (5×25 mL). The EtOAc layer was dried over MgSO4 and concentrated. The residue was chromatographed (40 g silica, 10% EtOAc/hexanes) to give the title compound as a solid (236 mg, 61%); IR(CHCl3): 1128, 1269, 1300, 1725, 2231, 3024 cm−1; NMR(300 MHz, CDCl3): 2.63 (s, 3H); 3.95 (s, 3H); 7.43 (d, 1H, J=8.1 Hz); 8.14 (d, 1H, J=8.1 Hz); 8.28 (s, 1H); MS(FD): 175.1.
Reaction SMILES: [C:1](Cl)(=[O:17])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16].[C:19]([N:36]([C@@H:42]1[C@H:46]([OH:47])[C@@H:45]([CH2:48][OH:49])[O:44][C@H:43]1[N:50]1[CH:57]=[CH:56][C:54](=[O:55])[NH:53][C:51]1=[O:52])[C:37](=[O:41])[CH2:38][CH2:39][NH2:40])([O:21][CH2:22][CH:23]1[C:35]2[C:30](=[CH:31][CH:32]=[CH:33][CH:34]=2)[C:29]2[C:24]1=[CH:25][CH:26]=[CH:27][CH:28]=2)=[O:20]>N1C=CC=CC=1>[C:1]([C@@:46]1([OH:47])[C@@H:45]([CH:48]([C:1](=[O:17])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16])[OH:49])[O:44][C@@H:43]([N:50]2[CH:57]=[CH:56][C:54](=[O:55])[NH:53][C:51]2=[O:52])[C@@H:42]1[N:36]([C:19]([O:21][CH2:22][CH:23]1[C:24]2[C:29](=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:30]2[C:35]1=[CH:34][CH:33]=[CH:32][CH:31]=2)=[O:20])[C:37](=[O:41])[CH2:38][CH2:39][NH2:40])(=[O:17])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16]
Reactant: CCCCCCCCCCCCCCCC(=O)Cl
Reactant: NCCC(=O)N(C(=O)OCC1c2ccccc2-c2ccccc21)[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1n1ccc(=O)[nH]c1=O
Solvent: c1ccncc1
Product: CCCCCCCCCCCCCCCC(=O)C(O)[C@H]1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](N(C(=O)CCN)C(=O)OCC2c3ccccc3-c3ccccc32)[C@@]1(O)C(=O)CCCCCCCCCCCCCCC
Temperature: 25 °C
Reaction time: 8 h
Yield: 65 %

Procedure:
Palmitoyl chloride (1.55 mL, 1.8 mmol) was added to a solution of nucleoside 28 in abs pyridine and the reaction mixture was stirred overnight at room temperature. The solution was then quenched with MeOH, evaporated to dryness, dissolved in dichloromethane and washed with saturated aq sodium bicarbonate and brine. The organic phase was dried oversodium sulfate and evaporated to dryness. The residue was purified by flash chromatography on silica (EtOAc-Hexanes 1:1) affording 0.5 g of 29 (yield, 65%).
Reaction SMILES: [C:1]([NH:8][C@H:9]([C:11](N)=O)[CH3:10])([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].F[B-](F)(F)F.C([O+](CC)CC)C.[F:26][C:27]1[CH:28]=[C:29]([NH:34][C:35]2[CH:40]=[CH:39][N:38]=[CH:37][CH:36]=2)[C:30]([NH2:33])=[CH:31][CH:32]=1>C(Cl)Cl.CCO>[C:4]([O:3][C:1](=[O:2])[NH:8][CH:9]([C:10]1[N:34]([C:35]2[CH:36]=[CH:37][N:38]=[CH:39][CH:40]=2)[C:29]2[CH:28]=[C:27]([F:26])[CH:32]=[CH:31][C:30]=2[N:33]=1)[CH3:11])([CH3:7])([CH3:6])[CH3:5]
Reactant: C[C@H](NC(=O)OC(C)(C)C)C(N)=O
Reactant: Nc1ccc(F)cc1Nc1ccncc1
Agent: CC[O+](CC)CC
Agent: F[B-](F)(F)F
Solvent: ClCCl
Solvent: CCO
Product: CC(NC(=O)OC(C)(C)C)c1nc2ccc(F)cc2n1-c1ccncc1
Temperature: 25 °C
Reaction time: 1 h
Yield: 57.8 %

Procedure:
To a suspension of (S)-Boc-alaninamide (385 mg, 2.05 mmol) in DCM (5 mL) was added triethyloxonium tetrafluoroborate (389 mg, 2.05 mmol) in one portion under a nitrogen atmosphere. The resulting mixture was left to stir at RT for 1 h. The volatiles were removed under reduced pressure and to the resulting residue was added 4-fluoro-N2-pyridin-4-yl-benzene-1,2-diamine (208 mg, 1.02 mmol) in absolute EtOH (5 mL) and the mixture was stirred at 80° C. for 16 h. The volatiles were removed under reduced pressure and the resulting residue partitioned between DCM and a saturated aqueous solution of NaHCO3. The organic fraction was dried, concentrated in vacuo and the resulting residue purified by column chromatography (Si—PCC, gradient 0-10% MeOH in EtOAc) to afford the title compound as a pale yellow oil (210 mg, 58%). LCMS (Method C): RT 2.84 min [M+H]+ 357.15
Reaction SMILES: [Br:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]2[C:11]3[CH:19]=[C:18]([NH:20]CC4C=CC(OC)=CC=4)[N:17]=[CH:16][C:12]=3[N:13]=[CH:14][N:15]=2)[CH:5]=[CH:6][C:7]=1[F:8].C1(OC)C=CC=CC=1>FC(F)(F)C(O)=O>[Br:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]2[C:11]3[CH:19]=[C:18]([NH2:20])[N:17]=[CH:16][C:12]=3[N:13]=[CH:14][N:15]=2)[CH:5]=[CH:6][C:7]=1[F:8]
Reactant: COc1ccc(CNc2cc3c(Nc4ccc(F)c(Br)c4)ncnc3cn2)cc1
Solvent: O=C(O)C(F)(F)F
Solvent: COc1ccccc1
Product: Nc1cc2c(Nc3ccc(F)c(Br)c3)ncnc2cn1
Temperature: 25 °C
Reaction time: 20 h
Yield: 98.6 %

Procedure:
To a stirred homogeneous solution of compound 165 (15.9 g, 34.9 mmol) in trifluoroacetic acid (80 mL) was added anisole (7.58 mL, 69.8 mmol). The mixture was then stirred at room temperature for 20 h. Most of the trifluoroacetic acid was evaporated under reduced pressure at 35° C. (bath temperature). The resultant red-brown oil was stirred with petroleum ether (400 mL) at room temperature for ca. 10 min. The petroleum ether layer was then decanted and the process was repeated with more petroleum ether (2×300 mL). The residue was then stirred with 5M NH3 at 0° C. for 5 min, then at room temperature for another 45 min. The solid thus obtained was collected by filtration and washed with water (3×60 mL) before being dried in vacuo. The solid was then stirred with warm acetone (500 mL) for 30 min. Water (800 mL) was added and the suspension was stirred at room temperature for 1 h. The solid was again collected by filtration and washed successively with water (6×70 mL) and then petroleum ether/ethyl acetate (3:1, 4×100 mL) before being dried under reduced pressure, to give N4-(3-bromo-4-fluorophenyl)pyrido[3,4-d]pyrimidine-4,6-diamine (159) (11.5 g, 99%), mp 269-271° C. (literature mp 268-270° C.). 1H NMR identical with that reported (Smaill et al. J Med Chem, 1999, 42, 1803-1815).
Reaction SMILES: [NH2:1][CH:2]([C:11]1[C:16]([O:17][CH3:18])=[CH:15][CH:14]=[CH:13][C:12]=1[O:19][CH3:20])[CH2:3][CH:4]([CH3:10])[C:5]([O:7]CC)=O.[N:21]1[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=1[C:27]1[CH:28]=[C:29]([CH:32]=[CH:33][CH:34]=1)[CH:30]=O>>[CH3:18][O:17][C:16]1[CH:15]=[CH:14][CH:13]=[C:12]([O:19][CH3:20])[C:11]=1[CH:2]1[N:1]([CH2:30][C:29]2[CH:32]=[CH:33][CH:34]=[C:27]([C:22]3[CH:23]=[CH:24][CH:25]=[CH:26][N:21]=3)[CH:28]=2)[C:5](=[O:7])[CH:4]([CH3:10])[CH2:3]1
Reactant: CCOC(=O)C(C)CC(N)c1c(OC)cccc1OC
Reactant: O=Cc1cccc(-c2ccccn2)c1
Product: COc1cccc(OC)c1C1CC(C)C(=O)N1Cc1cccc(-c2ccccn2)c1

Procedure:
Prepared according to the described general procedure 2 (GP2) by reaction of ethyl 4-amino-4-(2,6-dimethoxyphenyl)-2-methylbutanoate with commercially available 3-(pyridin-2-yl)benzaldehyde. Subsequent purification by preparative HPLC afforded the target compound. LC-MS (conditions A): tR=0.64 min.; [M+H]+: 402.99 g/mol.
Reaction SMILES: [C:1]1(=[O:9])[C:8]2[N:4]([CH:5]=[CH:6][CH:7]=2)[CH2:3][CH2:2]1.[Br:10]N1C(=O)CCC1=O>C1COCC1>[Br:10][C:6]1[CH:7]=[C:8]2[N:4]([CH2:3][CH2:2][C:1]2=[O:9])[CH:5]=1
Reactant: O=C1CCn2cccc21
Reactant: O=C1CCC(=O)N1Br
Solvent: C1CCOC1
Product: O=C1CCn2cc(Br)cc21
Temperature: -10 °C
Reaction time: 1 h

Procedure:
A mixture of 2,3-dihydro-1H-pyrrolizin-1-one (300 mg, 2.48 mmol) in THF (20 mL) was cooled to −10° C. in a brine bath. N-Bromosuccinimide (441 mg, 2.48 mmol) in THF (5 mL) was added dropwise, and the reaction mixture was stirred at −10° C. for 1 hour. The reaction was subsequently quenched with water (100 mL) and extracted with ethyl acetate (2×100 mL). The organic layers were combined and dried and to give the title compound, which was used without further purification (520 mg). 1H NMR (400 MHz, DMSO-d6) δ ppm 3.02-3.05 (m, 2H), 4.17-4.20 (m, 2H), 6.58 (d, J=4.40 Hz, 1H), 6.67 (d, J=3.90 Hz, 1H). ESI-MS m/z [M+H]+ calc'd for C7H6BrNO, 200. found, 200.
Reaction SMILES: [F:1][C:2]1[C:12]([N:13]2[C:18](=[O:19])[CH:17]=[C:16]([C:20]([F:23])([F:22])[F:21])[N:15]([CH3:24])[C:14]2=[O:25])=[CH:11][C:5]2[NH:6][C:7](=[O:10])[CH2:8][O:9][C:4]=2[CH:3]=1.[N+:26]([O-])([OH:28])=[O:27]>C(O)(=O)C>[F:1][C:2]1[C:12]([N:13]2[C:18](=[O:19])[CH:17]=[C:16]([C:20]([F:21])([F:22])[F:23])[N:15]([CH3:24])[C:14]2=[O:25])=[C:11]([N+:26]([O-:28])=[O:27])[C:5]2[NH:6][C:7](=[O:10])[CH2:8][O:9][C:4]=2[CH:3]=1
Reactant: O=[N+]([O-])O
Reactant: Cn1c(C(F)(F)F)cc(=O)n(-c2cc3c(cc2F)OCC(=O)N3)c1=O
Solvent: CC(=O)O
Product: Cn1c(C(F)(F)F)cc(=O)n(-c2c(F)cc3c(c2[N+](=O)[O-])NC(=O)CO3)c1=O

Procedure:
3-[7-Fluoro-2H-1,4-benzoxazine-3(4H)-on-6-yl]-1-methyl-6-trifluoromethyl-2,4-(1H, 3H)-pyrimidinedione (3.5 g) was slowly added to a mixture of acetic acid (15 ml) and fuming nitric acid (45 ml) at 0° C. with stirring. After stirring for 2 hr at room temperature, the solution was poured on ice-water and extracted with ethyl acetate. The organic layer was washed with water and brine, dried over sodium sulfate and evaporated. The residue was purified by column chromatography on silica gel using hexane-ethyl acetate (6:4) as eluent to afford the title compound (3.25 g).
Reaction SMILES: [CH3:1][C:2]1[CH:7]=[C:6]([C:8]([N:10]2[C:16]3[CH:17]=[CH:18][CH:19]=[CH:20][C:15]=3[C:14](=[O:21])[NH:13][C:12]3[CH:22]=[CH:23][CH:24]=[CH:25][C:11]2=3)=[O:9])[CH:5]=[C:4]([CH3:26])[N:3]=1.[BH4-].[Na+].[CH3:29]O>>[CH3:29][N:3]1[CH:2]([CH3:1])[CH2:7][C:6]([C:8]([N:10]2[C:16]3[CH:17]=[CH:18][CH:19]=[CH:20][C:15]=3[C:14](=[O:21])[NH:13][C:12]3[CH:22]=[CH:23][CH:24]=[CH:25][C:11]2=3)=[O:9])=[CH:5][CH:4]1[CH3:26]
Reactant: Cc1cc(C(=O)N2c3ccccc3NC(=O)c3ccccc32)cc(C)n1
Reactant: CO
Agent: [BH4-]
Agent: [Na+]
Product: CC1C=C(C(=O)N2c3ccccc3NC(=O)c3ccccc32)CC(C)N1C
Yield: 25 %

Procedure:
Prepared analogously to Example 7(c) from 5,10-dihydro-5-[(2,6-dimethyl-4-pyridinyl)carbonyl]-11H-dibenzo[b,e][1,4]diazepin-11-one methoiodide and sodium borohydride in methanol in a yield of 25% of theory. After purification by column chromatography on silica gel using dichloromethane/methanol (ratio by volume 9:1) as a eluent and recrystallizing from diisopropylether/methanol, the light beige crystals melted at 124°-125° C.
Reaction SMILES: C[N:2](C)[CH:3]=[CH:4][C:5]([C:7]1[C:12](=[O:13])[CH:11]=[CH:10][N:9]([C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:20]([F:23])([F:22])[F:21])[CH:15]=2)[N:8]=1)=O.Cl.[F:26][C:27]1[CH:32]=[CH:31][C:30]([NH:33]N)=[CH:29][CH:28]=1.CCN(CC)CC>C(O)C>[F:26][C:27]1[CH:32]=[CH:31][C:30]([N:33]2[C:5]([C:7]3[C:12](=[O:13])[CH:11]=[CH:10][N:9]([C:14]4[CH:19]=[CH:18][CH:17]=[C:16]([C:20]([F:23])([F:22])[F:21])[CH:15]=4)[N:8]=3)=[CH:4][CH:3]=[N:2]2)=[CH:29][CH:28]=1
Reactant: CN(C)C=CC(=O)c1nn(-c2cccc(C(F)(F)F)c2)ccc1=O
Reactant: NNc1ccc(F)cc1
Agent: Cl
Solvent: CCO
Solvent: CCN(CC)CC
Product: O=c1ccn(-c2cccc(C(F)(F)F)c2)nc1-c1ccnn1-c1ccc(F)cc1
Temperature: 100 °C
Reaction time: 3 h
Yield: 29.7 %

Procedure:
To a solution of 3-[3-(dimethylamino)prop-2-enoyl]-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one (337 mg, 1.0 mmol) in ethanol (100 mL) were added 4-fluorophenylhydrazine hydrochloride (244 mg, 1.5 mmol) and Et3N (0.28 mL, 2.0 mmol). The mixture was stirred at 100° C. for 3 h and the solvent was removed under reduced pressure. Preparative HPLC chromatography provided 3-[1-(4-fluorophenyl)-1H-pyrazol-5-yl]-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one as a pale brown solid (119 mg, 30%).
Reaction SMILES: [NH2:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:14](=[O:15])[CH2:13][C:12](=[O:16])[NH:11][C:10]3[C:17]4[C:22]([CH:23]=[CH:24][C:9]2=3)=[CH:21][CH:20]=[CH:19][CH:18]=4)=[CH:4][CH:3]=1.[Cl:25][C:26]1[CH:36]=[CH:35][C:29]([CH2:30][S:31](Cl)(=[O:33])=[O:32])=[CH:28][CH:27]=1>>[Cl:25][C:26]1[CH:27]=[CH:28][C:29]([CH2:30][S:31]([NH:1][C:2]2[CH:7]=[CH:6][C:5]([N:8]3[C:14](=[O:15])[CH2:13][C:12](=[O:16])[NH:11][C:10]4[C:17]5[C:22]([CH:23]=[CH:24][C:9]3=4)=[CH:21][CH:20]=[CH:19][CH:18]=5)=[CH:4][CH:3]=2)(=[O:33])=[O:32])=[CH:35][CH:36]=1
Reactant: Nc1ccc(N2C(=O)CC(=O)Nc3c2ccc2ccccc32)cc1
Reactant: O=S(=O)(Cl)Cc1ccc(Cl)cc1
Product: O=C1CC(=O)N(c2ccc(NS(=O)(=O)Cc3ccc(Cl)cc3)cc2)c2ccc3ccccc3c2N1
Yield: 56 %

Procedure:
By using 5-(4-aminophenyl)-1H-naphtho[1,2-b][1,4]diazepine-2,4(3H,5H)-dione obtained in Example 1, (3), and 4-chlorobenzylsulfonyl chloride, the title compound (yield 56%) was obtained in the same manner as that of Example 145.
Reaction SMILES: Cl.Cl.[NH2:3][CH2:4][CH2:5][CH2:6][S:7][C:8]1[CH:13]=[CH:12][N:11]=[CH:10][CH:9]=1.C(N(CC)CC)C.[C:21]1([C:31]([Cl:33])=[O:32])[C:30]2[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=2)[CH:24]=[CH:23][CH:22]=1>C(Cl)Cl>[ClH:33].[C:21]1([C:31]([NH:3][CH2:4][CH2:5][CH2:6][S:7][C:8]2[CH:13]=[CH:12][N:11]=[CH:10][CH:9]=2)=[O:32])[C:30]2[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=2)[CH:24]=[CH:23][CH:22]=1
Reactant: NCCCSc1ccncc1
Reactant: O=C(Cl)c1cccc2ccccc12
Agent: Cl
Solvent: ClCCl
Solvent: CCN(CC)CC
Product: O=C(NCCCSc1ccncc1)c1cccc2ccccc12
Yield: 67.1 %

Procedure:
To a solution of 1.00 g (4.15 mmol) of 4-(3-aminopropylthio)pyridine dihydrochloride and 2.78 ml (19.9 mmol) of trietylamine in 40 ml of methylene chloride was added 0.75 ml (4.98 mmol) of 1-naphthoyl chloride under ice-cooling with stirring and the mixture was stirred at room temperature for 30 minutes. The reaction mixture was washed with an aqueous saturated sodium bicarbonate solution and water and dried. The solvent was distilled off. The residue was purified by column chromatography (eluent: methanol/ethyl acetate=1:10) to obtain the powder which was washed with ether and dried to obtain 1.00 g of the desired compound (free base) (74.8%, yellow powder), mp: 113.0°-114.0° C.
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[CH:12]=[N:13][C:14]([C:15]4[N:19]=[C:18]([CH2:20]Cl)[O:17][N:16]=4)=[C:10]3[CH2:9][N:8]([CH3:22])[C:7](=[O:23])[C:6]=2[CH:24]=1.[CH2:25]([NH:29][CH2:30][CH2:31][CH2:32][CH3:33])[CH2:26][CH2:27][CH3:28]>CN(C)C=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[CH:12]=[N:13][C:14]([C:15]4[N:19]=[C:18]([CH2:20][N:29]([CH2:30][CH2:31][CH2:32][CH3:33])[CH2:25][CH2:26][CH2:27][CH3:28])[O:17][N:16]=4)=[C:10]3[CH2:9][N:8]([CH3:22])[C:7](=[O:23])[C:6]=2[CH:24]=1
Reactant: CCCCNCCCC
Reactant: CN1Cc2c(-c3noc(CCl)n3)ncn2-c2ccc(Cl)cc2C1=O
Solvent: CN(C)C=O
Product: CCCCN(CCCC)Cc1nc(-c2ncn3c2CN(C)C(=O)c2cc(Cl)ccc2-3)no1
Temperature: 25 °C
Reaction time: 1.5 h
Yield: 72 %

Procedure:
A solution of 278 mg (0.76 mmol) of 8-chloro-3-(5-chloromethyl-1,2,4-oxadiazol-3-yl)-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one in 5 ml of N,N-dimethylformamide was treated with 0.39 ml (2.3 mmol) of dibutylamine and stirred at room temperature under argon for 1.5 hrs. The solution was evaporated, the residue was dissolved in 20 ml of methylene chloride and the solution was washed three times with water. The organic phase was dried with sodium sulfate, filtered and evaporated. The crude product was chromatographed on 20 g of silica gel (methylene chloride/acetone 4:1). There were obtained 250 mg of 8-chloro-3-(5-dibutylaminomethyl-1,2,4-oxadiazol-3-yl)-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one, which was converted with ethereal hydrochloric acid into the hydrochloride. By crystallization from acetonitrile there were obtained 151 mg (39%) of 8-chloro-1-(5-dibutylaminomethyl-1,2,4-oxadiazol-3-yl)-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one hydrochloride (1:1.3) of m.p. 165°-175° (dec.).
Reaction SMILES: [C:1]([NH:9][C:10]1[CH:19]=[CH:18][C:13]([S:14](F)(=[O:16])=[O:15])=[CH:12][CH:11]=1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(NC1C=CC=CC=1)(=O)C1C=CC=CC=1.[Cl:35]S(O)(=O)=O>>[C:1]([NH:9][C:10]1[CH:19]=[CH:18][C:13]([S:14]([Cl:35])(=[O:16])=[O:15])=[CH:12][CH:11]=1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
Reactant: O=S(=O)(O)Cl
Reactant: O=C(Nc1ccc(S(=O)(=O)F)cc1)c1ccccc1
Agent: O=C(Nc1ccccc1)c1ccccc1
Product: O=C(Nc1ccc(S(=O)(=O)Cl)cc1)c1ccccc1
Temperature: 60 °C
Reaction time: 2 h
Yield: 41 %

Procedure:
N-benzoylsulfanilyl chloride was prepared as starting material for N-benzoylsulfanilyl fluoride in the following manner: A 15 gm (0.076 mole) portion of benzanilide was added with stirring to 26 ml (0.38 mole) of chlorosulfonic acid at 0° C. The mixture was then allowed to stir at 60° C for two hours, then cooled to room temperature and poured into ca 200 gm of ice. The sulfonyl chloride was recovered by filtration and recrystallized from chlorobenzene, giving 9.1 gm (41% yield) with mp 176°-178° C. The assigned structure was in agreement with the chemical analysis and the NMR and IR spectra.
Reaction SMILES: [CH3:1][O:2][C:3](=[O:16])[C:4]1[CH:9]=[C:8]([N+:10]([O-:12])=[O:11])[C:7]([NH2:13])=[C:6]([F:14])[C:5]=1F.[NH2:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1>>[CH3:1][O:2][C:3](=[O:16])[C:4]1[CH:9]=[C:8]([N+:10]([O-:12])=[O:11])[C:7]([NH2:13])=[C:6]([F:14])[C:5]=1[NH:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1
Reactant: COC(=O)c1cc([N+](=O)[O-])c(N)c(F)c1F
Reactant: Nc1ccccc1
Product: COC(=O)c1cc([N+](=O)[O-])c(N)c(F)c1Nc1ccccc1
Temperature: 125 °C
Reaction time: 16 h

Procedure:
4-Amino-2,3-difluoro-5-nitro-benzoic acid methyl ester 4 (23.48 g, 101.1 mmol), the product of Example 1, Step C, is suspended in xylenes (125 mL) and aniline (92 mL, 1011 mmol) is added. The reaction mixture is stirred at 125° C. for 16 hours under N2. The reaction mixture is cooled to room temperature and solids precipitate out of solution. The solids are collected by filtration and are washed with xylenes and then diethyl ether. Recovered 22.22 g (72.78 mmol) of yellow solid which is pure desired product. The filtrate is concentrated under reduced pressure, redissolved in methylene chloride and flushed through a plug of silica gel eluting with methylene chloride. The desired fractions are concentrated under reduced pressure to give a brown solid which is triturated with diethyl ether to give 5.47 g (17.91 mmol) of yellow solid which is pure desired product. Combined product yield is 27.69 g (90%). MS APCI (−) m/z 304 (M−1) detected.
Reaction SMILES: [F:1][C:2]1([F:33])[CH2:7][CH2:6][CH2:5][N:4]([C:8]2[N:12](CCOC[Si](C)(C)C)[N:11]=[CH:10][C:9]=2[NH:21][C:22]([C:24]2[CH:25]=[N:26][N:27]3[CH:32]=[CH:31][CH:30]=[N:29][C:28]=23)=[O:23])[CH2:3]1.Cl>C(O)C.O>[F:33][C:2]1([F:1])[CH2:7][CH2:6][CH2:5][N:4]([C:8]2[C:9]([NH:21][C:22]([C:24]3[CH:25]=[N:26][N:27]4[CH:32]=[CH:31][CH:30]=[N:29][C:28]=34)=[O:23])=[CH:10][NH:11][N:12]=2)[CH2:3]1
Reactant: C[Si](C)(C)COCCn1ncc(NC(=O)c2cnn3cccnc23)c1N1CCCC(F)(F)C1
Agent: Cl
Solvent: O
Solvent: CCO
Product: O=C(Nc1c[nH]nc1N1CCCC(F)(F)C1)c1cnn2cccnc12
Temperature: 70 °C
Reaction time: 1 h
Yield: 105.6 %

Procedure:
To a solution of N-(5-(3,3-difluoropiperidin-1-yl)-1-(2-((trimethylsilyl)methoxy)ethyl)-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide (1.0 g, 2.1 mmol) in 50 mL of ethanol was added HCl (1.75 mL of a 6 M solution in water, 10.5 mmol). The reaction mixture was stirred at 70° C. for 1 hour. After cooling to room temperature, a light yellow precipitate formed, which was filtered off and rinsed with methanol and diethyl ether. The filtrate was then reduced in volume, and more solid product isolated by filteration. The combined collected solids were dried under vacuum to afford 0.77 g (94%) of N-(3-(3,3-difluoropiperidin-1-yl)-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide. LCMS (ESI) m+H=348.1; 1H NMR (400 MHz, CDCl3) δ: 9.59 (s, 1H), 9.37 (dd, 1H), 8.84 (m, 2H), 8.01 (s, 1H), 7.32 (dd, 1H), 3.74 (s, 1H), 3.33 (m, 2H), 3.12 (m, 2H), 2.10 (m, 2H), 2.00 (m, 2H).
Reaction SMILES: [C:1]([O:5][C:6]([NH:8][C:9](=[CH:14][C:15]1[CH:20]=[CH:19][C:18]([C:21]2[S:22][C:23]([C:26]3[CH:31]=[CH:30][C:29]([O:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH3:39])=[CH:28][CH:27]=3)=[CH:24][N:25]=2)=[CH:17][CH:16]=1)[C:10]([O:12][CH3:13])=[O:11])=[O:7])([CH3:4])([CH3:3])[CH3:2].[H][H]>O1CCOCC1.[Pd]>[C:1]([O:5][C:6]([NH:8][CH:9]([CH2:14][C:15]1[CH:20]=[CH:19][C:18]([C:21]2[S:22][C:23]([C:26]3[CH:31]=[CH:30][C:29]([O:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH3:39])=[CH:28][CH:27]=3)=[CH:24][N:25]=2)=[CH:17][CH:16]=1)[C:10]([O:12][CH3:13])=[O:11])=[O:7])([CH3:2])([CH3:4])[CH3:3]
Reactant: [H][H]
Reactant: CCCCCCCOc1ccc(-c2cnc(-c3ccc(C=C(NC(=O)OC(C)(C)C)C(=O)OC)cc3)s2)cc1
Agent: [Pd]
Solvent: C1COCCO1
Product: CCCCCCCOc1ccc(-c2cnc(-c3ccc(CC(NC(=O)OC(C)(C)C)C(=O)OC)cc3)s2)cc1
Yield: 41.8 %

Procedure:
A stirring mixture of Methyl 2-((tert-butoxycarbonyl)amino)-3-(4-(5-(4-(heptyloxy)phenyl) thiazol-2-yl)phenyl)acrylate (50 mg, 0.091 mmol) dissolved in dioxane (5 mL) was hydrogenated using an H-Cube hydrogenator (10% Pd/C, 30×4 mm, full hydrogen, 40° C., 1 mL/min). The reaction mixture was concentrated in vacuo to afford 21 mg (29%) of methyl 2-((tert-butoxycarbonyl)amino)-3-(4-(5-(4-(heptyloxy)phenyl) thiazol-2-yl)phenyl)propanoate as a yellow solid. LCMS-ESI (m/z) calculated for C31H40N2O5S: 552.7. found 553.0 [M+H]+, tR=1.85 min. (Method 8).
Reaction SMILES: [OH:1][CH:2]([C:4]1([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH2:8][CH2:7][C:6]([O:11][CH3:12])([O:9][CH3:10])[CH2:5]1)[CH3:3].C(N(CC)CC)C.[C:27](OC(=O)C)(=[O:29])[CH3:28]>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:27]([O:1][CH:2]([C:4]1([C:13]([O:15][C:16]([CH3:18])([CH3:17])[CH3:19])=[O:14])[CH2:8][CH2:7][C:6]([O:11][CH3:12])([O:9][CH3:10])[CH2:5]1)[CH3:3])(=[O:29])[CH3:28]
Reactant: CC(=O)OC(C)=O
Reactant: COC1(OC)CCC(C(=O)OC(C)(C)C)(C(C)O)C1
Agent: CN(C)c1ccncc1
Solvent: CCN(CC)CC
Solvent: ClCCl
Product: COC1(OC)CCC(C(=O)OC(C)(C)C)(C(C)OC(C)=O)C1
Temperature: 25 °C
Reaction time: 8 h

Procedure:
A solution of tert-butyl 1-(1-hydroxyethyl)-3,3-dimethoxycyclopentanecarboxylate (8.64 g, 31.5 mmol) in 100 mL of DCM was treated with triethylamine (8.78 mL, 63.0 mmol) followed by acetic anhydride (5.94 mL, 63.0 mmol). Then DMAP (˜200 mg) was added and the resulting mixture was stirred at rt overnight. The reaction mixture was diluted with DCM, washed twice with 1N HCl solution, once with saturated NaHCO3 solution, and once with brine. The organic layer was dried over anhydrous MgSO4, filtered, and concentrated. Purification by flash chromatography (silica, 20% ethyl acetate/hexanes) provided tert-butyl 1-[1-(acetyloxy)ethyl]-3,3-dimethoxycyclopentanecarboxylate.