Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: C[C:2]1[C:3](C)=[C:4]([C:15]#[C:16]CO)[C:5]2[CH2:6][C:7]3[C:12]([C:13]=2[CH:14]=1)=[CH:11][CH:10]=[CH:9][CH:8]=3.[OH-].[Na+].C1(C)C=CC=CC=1>CCCCCC>[C:4]1([C:15]#[CH:16])[C:5]2[CH2:6][C:7]3[C:12](=[CH:11][CH:10]=[CH:9][CH:8]=3)[C:13]=2[CH:14]=[CH:2][CH:3]=1
Reactant: Cc1cc2c(c(C#CCO)c1C)Cc1ccccc1-2
Agent: [Na+]
Agent: [OH-]
Solvent: CCCCCC
Solvent: Cc1ccccc1
Product: C#Cc1cccc2c1Cc1ccccc1-2
Temperature: 120 °C

Procedure:
1.74 g (7 mmol) of Dimethylhydroxymethyl-2-fluorenylacetylene and 294 mg (7.35 mmol) of NaOH (KISHIDA CHEMICAL CO., Ltd., 0.7 mm granular, 98%) were placed in a 100 mL two-neck flask equipped with a reflux condenser and the air inside the flask was replaced with Ar. 35 mL of toluene was added thereto and the mixture was refluxed at 120° C. for 1 hour. Toluene was added to the reaction mixture and the mixture was washed with a saturated aqueous ammonium chloride solution and dried over magnesium sulfate. The solvent was distilled off under reduced pressure by an evaporator. The resulting crude reaction product was dissolved in 40 ml of hexane at 70° C. and then the insolubles were filtered off. The filtrate was cooled to give 2-fluorenylethyne, i.e., the desired compound as a yellow solid (1.12 g, yield: 84%).
Reaction SMILES: C[O:2][C:3]1[C:8]([C:9]2[CH:14]=[CH:13][C:12]([O:15][C:16]3[CH:21]=[CH:20][N:19]=[C:18]([C:22]4[CH:23]=[N:24][N:25]([CH3:27])[CH:26]=4)[CH:17]=3)=[C:11]([CH3:28])[N:10]=2)=[CH:7][N:6]=[C:5]([N:29]2[CH2:33][CH2:32][CH2:31][C@@H:30]2[CH2:34][O:35][CH3:36])[N:4]=1.Br.CCOCC>CC(O)=O>[CH3:36][O:35][CH2:34][C@H:30]1[CH2:31][CH2:32][CH2:33][N:29]1[C:5]1[NH:4][C:3](=[O:2])[C:8]([C:9]2[CH:14]=[CH:13][C:12]([O:15][C:16]3[CH:21]=[CH:20][N:19]=[C:18]([C:22]4[CH:23]=[N:24][N:25]([CH3:27])[CH:26]=4)[CH:17]=3)=[C:11]([CH3:28])[N:10]=2)=[CH:7][N:6]=1
Reactant: COC[C@H]1CCCN1c1ncc(-c2ccc(Oc3ccnc(-c4cnn(C)c4)c3)c(C)n2)c(OC)n1
Agent: Br
Solvent: CC(=O)O
Solvent: CCOCC
Product: COC[C@H]1CCCN1c1ncc(-c2ccc(Oc3ccnc(-c4cnn(C)c4)c3)c(C)n2)c(=O)[nH]1
Temperature: 90 °C
Reaction time: 3.5 h
Yield: 61.2 %

Procedure:
(R)-4-methoxy-2-(2-(methoxymethyl)pyrrolidin-1-yl)-5-(6-methyl-5-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)pyridin-2-yl)pyrimidine (96 mg, 0.20 mmol) was dissolved in AcOH (3 mL) and then 48% hydrobromic acid (0.1 mL) was added. The mixture was heated at 90° C. FOR 3.5 hours. The mixture was concentrated and the residue was treated with NaHCO3 solution. The solution was extracted with EtOAc (3×) and the organic was washed with NaHCO3, dried over Na2SO4, filtered and concentrated to obtain the crude. The material was treated with ether and sonicated. The solid was filtered, washed with ether and dried under vacuum to obtain (R)-2-(2-(methoxymethyl)pyrrolidin-1-yl)-5-(6-methyl-5-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)pyridin-2-yl)pyrimidin-4(3H)-one (58 mg, 60.1% yield). 1H NMR (400 MHz, DMSO-d6): δ 11.15 (br s, 1H), 8.73 (s, 1H), 8.36 (d, J=5.7 Hz, 1H), 8.28 (br s, 1H), 8.26 (s, 1H), 7.97 (s, 1H), 7.53 (m, 1H), 7.23 (d, J=2.4 Hz, 1H), 6.62 (m, 1H), 4.34 (m, 1H), 3.85 (s, 3H), 3.52-3.40 (m, 4H), 3.28 (s, 3H), 2.35 (s, 3H), 1.95 (br d, J=27.5 Hz, 4H); MS (ESI) m/z: 474.3 (M+H+).
Reaction SMILES: [CH2:1]([C:3]1[N:7]([C:8]2[N:16]=[C:15]3[C:11]([N:12]=[C:13]([CH:18]=O)[N:14]3[CH3:17])=[C:10]([N:20]3[CH2:25][CH2:24][O:23][CH2:22][CH2:21]3)[N:9]=2)[C:6]2[CH:26]=[CH:27][CH:28]=[CH:29][C:5]=2[N:4]=1)[CH3:2].[CH3:30][N:31]([CH:38]1[CH2:41][O:40][CH2:39]1)[CH:32]1[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[CH2:1]([C:3]1[N:7]([C:8]2[N:16]=[C:15]3[C:11]([N:12]=[C:13]([CH2:18][N:35]4[CH2:36][CH2:37][CH:32]([N:31]([CH3:30])[CH:38]5[CH2:39][O:40][CH2:41]5)[CH2:33][CH2:34]4)[N:14]3[CH3:17])=[C:10]([N:20]3[CH2:25][CH2:24][O:23][CH2:22][CH2:21]3)[N:9]=2)[C:6]2[CH:26]=[CH:27][CH:28]=[CH:29][C:5]=2[N:4]=1)[CH3:2]
Reactant: CN(C1CCNCC1)C1COC1
Reactant: CCc1nc2ccccc2n1-c1nc(N2CCOCC2)c2nc(C=O)n(C)c2n1
Agent: CC(=O)O[BH-](OC(C)=O)OC(C)=O
Agent: [Na+]
Solvent: ClCCCl
Product: CCc1nc2ccccc2n1-c1nc(N2CCOCC2)c2nc(CN3CCC(N(C)C4COC4)CC3)n(C)c2n1
Reaction time: 16 h
Yield: 37 %

Procedure:
A mixture of 2-(2-ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbaldehyde (179 mg, 0.46 mmol), methyloxetan-3-ylpiperidin-4-ylamine (94 mg, 0.55 mmol) and 4 Å powdered molecular sieves (400 mg) in DCE (10 mL) was stirred at room temperature for 5 h before the addition of sodium triacetoxyborohydride (233 mg, 0.92 mmol). The reaction mixture was stirred for 16 h then filtered through celite, washing with DCM. The organic phase was washed with brine (×1) and concentrated in vacuo. The organic phase was dried (Na2SO4) and concentrated in vacuo. The resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-15%) affording 418 as a cream solid (93 mg, 37%). LCMS (Method I): RT 2.31 min [M+H]+ 546.4. 1H NMR (CDCl3, 400 MHz): δ 8.03-7.99 (m, 1 H); 7.78-7.72 (m, 1 H); 7.29-7.22 (m, 2 H); 4.67 (t, J=6.5 Hz, 2 H); 4.60 (t, J=6.6 Hz, 2 H); 4.34 (m, 4 H); 3.98-3.88 (m, 1 H); 3.89-3.82 (m, 7 H); 3.72 (s, 2 H); 3.35 (q, J=7.5 Hz, 2 H); 2.94 (d, J=11.2 Hz, 2 H); 2.35-2.24 (m, 1 H); 2.21 (s, 3 H); 2.13 (t, J=11.2 Hz, 2 H); 1.64 (d, J=12.2 Hz, 2 H); 1.54 (m, 2 H) and 1.45 (t, J=7.5 Hz, 3 H)
Reaction SMILES: I[C:2]1[C:3]([C:9]([O:11][CH3:12])=[O:10])=[N:4][C:5]([CH3:8])=[CH:6][CH:7]=1.[NH:13]1[CH:17]=[CH:16][N:15]=[N:14]1.CN[C@@H]1CCCC[C@H]1NC.C([O-])([O-])=O.[Cs+].[Cs+].C(=O)([O-])[O-]>[Cu]I.CN(C=O)C>[CH3:8][C:5]1[N:4]=[C:3]([C:9]([O:11][CH3:12])=[O:10])[C:2]([N:14]2[N:15]=[CH:16][CH:17]=[N:13]2)=[CH:7][CH:6]=1
Reactant: c1c[nH]nn1
Reactant: COC(=O)c1nc(C)ccc1I
Agent: [Cu]I
Agent: CN[C@@H]1CCCC[C@H]1NC
Agent: O=C([O-])[O-]
Solvent: CN(C)C=O
Product: COC(=O)c1nc(C)ccc1-n1nccn1

Procedure:
DMF (1.5 ml) was added to a mixture of methyl 3-iodo-6-methyl-2-pyridinecarboxylate D36 (100 mg), 1H-1,2,3-triazole (49.9 mg, 0.722 mmol), (1R,2R)—N,N′-dimethyl-1,2-cyclohexanediamine (10.27 mg, 0.072 mmol), CuI (3.44 mg, 0.018 mmol) and Cs2CO3 carbonate (235 mg, 0.722 mmol) in a microwave vial. The mixture was degassed via three vacuum/nitrogen cycles then irradiated in a single mode microwave reactor to 120° C. for 20 minutes. The mixture was irradiated in a single mode microwave reactor to 120° C. for a further 40 minutes. The reaction mixture was cooled and filtered washing the solids with EtOAc. The solids were dissolved in pH=3 buffer solution (5 ml); UPLC check of this aqueous solution showed it contained a considerable quantity of 6-methyl-3-(2H-1,2,3-triazol-2-yl)-2-pyridinecarboxylic acid. The aqueous phase was extracted repeatedly with DCM; the combined DCM extracts were diluted with MeOH (50 ml) and treated with TMS-diazomethane. The volatiles were evaporated to give a yellow residue that was purified by flash chromatography on silica gel (Biotage, SNAP 10 g column, 10%-50% EtOAc/Cy) to give the title compound D39 (38 mg) as a white solid. UPLC (Basic QC_POS—50-800): rt=0.57 minutes, peak observed: 219 (M+1). C10H10N4O2 requires 218. 1H NMR (400 MHz, CDCl3) δ ppm 8.20 (d, 1 H), 7.87 (s, 2 H), 7.44 (d, 1 H), 3.94 (s, 3 H), 2.71 (s, 3 H).
Reaction SMILES: [Br:1][C:2]1[CH:13]=[CH:12][C:5]([C:6](N(OC)C)=[O:7])=[C:4]([F:14])[CH:3]=1.[CH3:15][Mg]Br.C(OCC)C>C1COCC1>[Br:1][C:2]1[CH:13]=[CH:12][C:5]([C:6](=[O:7])[CH3:15])=[C:4]([F:14])[CH:3]=1
Reactant: CON(C)C(=O)c1ccc(Br)cc1F
Reactant: C[Mg]Br
Solvent: C1CCOC1
Solvent: CCOCC
Product: CC(=O)c1ccc(Br)cc1F
Reaction time: 2.5 h
Yield: 85 %

Procedure:
A solution of 4-bromo-2-fluoro-N-methoxy-N-methyl-benzamide (CAS [801303-33-3]) (13.1 g, 50.0 mmol) in THF (50 mL) at −78 C was treated with a 3 M solution of methyl magnesium bromide in diethyl ether (16.7 mL, 50 mmol) and allowed to warm with stirring to 0 C over a 2-3 h period, after which time the reaction mixture was quenched with a half saturated aqueous solution of NH4Cl (100 mL) and EtOAc (200 mL). The mixture was separated and the organic component, washed with brine (2×50 mL), dried over MgSO4, filtered, and evaporated to an oil which was purified by silica gel flash chromatography with 5% EtOAc/hexanes as eluant to afford 1-(4-bromo-2-fluorophenyl)-ethanone as a liquid (9.25 g, 85%). The ethanone (2.17 g, 10 mmol) was then dissolved in ethanol (25 mL), treated with hydrazine hydrate (535 uL, 11 mmol), and heated at reflux for 8 h. The reaction mixture was then evaporated and purified by silica gel flash chromatography with 30% then 60% EtOAc/hexanes as eluant to afford the hydrazone as a solid (2.29 g, 99%). The hydrazone (3.69 g, 16 mmol) was then treated with ethylene glycol (25 mL) and heated at 165° C. for 6 h after which time the cooled reaction mixture was poured onto water (100 mL). The aqueous mixture was neutralized, with rapid stirring, using a small amount of an aqueous saturated solution of NaHCO3 to afford a pale yellow precipitate. The solids were filtered, washed with water, and air dried to afford cyclized indazole product (2.62 g, 78%). The indazole (2.32 g, 11 mmol) was then dissolved in anhydrous DMF (50 mL) and treated with a 60% dispersion of sodium hydride in mineral oil (420 mg, 10.5 mmol). After 30 min of stirring, cyclopentyl bromide (1.53 mL, 14.3 mmol) was added and the reaction stirred for 24 h. The reaction mixture was quenched by pouring onto water (500 mL) which was neutralized with a small portion of a 1 N aqueous HCl solution and extracted with EtOAc (2×200 mL, then 100 mL). The combined organic extracts were dried over MgSO4, filtered, and evaporated to an oil, which was purified by silica gel flash chromatography with 25% then 80% EtOAc/hexanes as eluant to afford product as a clear yellow tinted oil (1.65 g, 54%). 1H NMR (CDCl3) 1.68-1.78 (m, 2 H), 1.93-2.01 (m, 2 H), 2.08-2.16 (m, 4 H), 2.54 (s, 3 H), 4.77-4.87 (m, 1 H), 7.18 (dd, J=8.4, 1.5, 1 H), 7.32 (dd, J=8.4, 0.7, 1 H), 7.55 (d, J=1.5, 1 H). 13C NMR 12.1 (CH3), 24.7 (CH2), 32.2 (CH2), 59.5 (CH), 112.2 (CH), 120.5, 121.8 (CH), 122.5, 123.2 (CH), 141.1, 141.4. LC/MS 7.71 min, [M+1]+ 281.
Reaction SMILES: C1(N=C=NC2CCCCC2)CCCCC1.[CH3:16][N:17]1[C:25]2[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=2)[C:19]([CH2:26][CH2:27][C:28]([OH:30])=O)=[CH:18]1.[CH3:31][CH:32]1[NH:36][CH2:35][C:34]2([CH2:41][CH2:40][N:39]([CH3:42])[CH2:38][CH2:37]2)[S:33]1>ClCCl>[CH3:31][CH:32]1[N:36]([C:28](=[O:30])[CH2:27][CH2:26][C:19]2[C:20]3[C:25](=[CH:24][CH:23]=[CH:22][CH:21]=3)[N:17]([CH3:16])[CH:18]=2)[CH2:35][C:34]2([CH2:41][CH2:40][N:39]([CH3:42])[CH2:38][CH2:37]2)[S:33]1
Reactant: CC1NCC2(CCN(C)CC2)S1
Reactant: Cn1cc(CCC(=O)O)c2ccccc21
Agent: C(=NC1CCCCC1)=NC1CCCCC1
Solvent: ClCCl
Product: CC1SC2(CCN(C)CC2)CN1C(=O)CCc1cn(C)c2ccccc12
Temperature: 25 °C
Reaction time: 48 h
Yield: 32.5 %

Procedure:
To a solution of dicyclohexylcarbodiimide (DCC) (1.3 g, 6.3 mmol) in dichloromethane (50 ml) at room temperature was added 3-(1-methyl-indole-3-yl)propanoic acid (1.18 g, 5.8 mmol) and a solution of 2,8-dimethyl-1-thia-3,8-diaza-spiro[4.5]decane (1.2 g, 6.4 mmol) in dichloromethane (50 ml). The resulting solution was stirred at room temperature for 48 h. During the reaction a white solid precipitated. After filtration, the solvent was evaporated and the crude product was purified by flash chromatography (silica, CH2Cl2/EtOH/NH4OH 100/10/1) to give the title compound (0.7 g) as a colorless oil. 1H NMR (CDCl3, 300 MHz) δ 7.60 (d, J=7.82 Hz, 1H, CHC arom), 7.35-7.2 (m, 2H, 2CHC arom), 7.23 (dt, J=1.06, 7.45 Hz, 1H, CHCH arom), 6.90 (s, 1H, CHNH arom), 5.54, 5.07 (2q, J=6.16 and J=6.25 Hz, 1H, CHCH3), 4.63, 3.68 (2d, J=12.0 and J=11.5 Hz, 1H, CHHNCO), 3.75, 3.74 (2s, 3H, NCH3), 3.32 (d, J=11.5 Hz, 0.6H, CHHNCO), 3.17-3.05 (m, 2.4H), 2.8-2.4 (m), 2.68 [t, J=7.6 Hz, C(O)CH2], 2.28, 2.26 (2s, 3H, NCH3), 2.3-2.2 (m), 2.1-2.0 (m), 2.0-1.8 (m), 1.7-1.4 (m), 1.48, 1.43 (2d, J=6.18 and J=6.26 Hz, 3H, CH3—CH) ppm; 13C NMR (CDCl3, 300 MHz) δ 170.6 (C), 137.1 (C), 126.8 (C), 126.7 (CH), 121.8 (CH), 119.0 (CH), 118.9 (CH), 113.7 (C), 109.4 (CH), 59.0 (C), 57.5, 57.2 (CH), 54.6, 54.2 (CH2), 53.2, 52.9 (CH2), 46.3, 46.2 (CH3), 38.1, 37.4 (CH2), 36.9, 36.6 (CH2), 36.4, 34.7 (CH2), 32.7 (CH3), 25.5, 23.5 (CH3), 21.0, 20.9 (CH2) ppm.
Reaction SMILES: [CH3:1][C:2]([NH2:6])([CH3:5])[CH2:3][NH2:4].[S:7](Cl)([CH3:10])(=[O:9])=[O:8].C(N(CC)CC)C>C(Cl)Cl>[NH2:6][C:2]([CH3:5])([CH3:1])[CH2:3][NH:4][S:7]([CH3:10])(=[O:9])=[O:8]
Reactant: CS(=O)(=O)Cl
Reactant: CC(C)(N)CN
Solvent: ClCCl
Solvent: CCN(CC)CC
Product: CC(C)(N)CNS(C)(=O)=O
Reaction time: 0.5 h
Yield: 33.4 %

Procedure:
2-Methyl-propane-1,2-diamine (2.00 g, 22.7 mmol, 2.38 mL, 1.1 eq.) was placed in CH2Cl2 (100 mL). Mesyl chloride (2.35 g, 20.7 mmol, 1.59 mL, 1.0 eq.) was added over a period of five minutes followed by triethylamine (6.27 g, 62.1 mmol, 8.71 mL, 3.0 eq.). The reaction was stirred for 30 minutes and then concentrated under reduced pressure. Purification by basic alumina chromatography using a gradient of 0-15% MeOH/CH2Cl2 as the eluting solvent to obtain N-(2-amino-2-methyl-propyl)-methanesulfonamide as a white solid (1.15 g, 33%). LCMS (m/e) 167 (M+1); 1H-NMR (CDCl3, 400 MHz) δ 2.98 (s, 3H), 2.95 (s, 2H), 1.17 (s, 3H), 1.16 (s, 3H).
Reaction SMILES: Cl.[F:2][C:3]1([C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH2:8][CH2:7][NH:6][CH2:5][CH2:4]1.C([O-])([O-])=O.[K+].[K+].O.[CH2:21]([O:23][C:24]([N:26]1[CH2:32][CH2:31][CH2:30][C:29](=O)[CH2:28][CH2:27]1)=[O:25])[CH3:22]>CO.[Cl-].[Zn+2].[Cl-]>[F:2][C:3]1([C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH2:4][CH2:5][N:6]([CH:29]2[CH2:30][CH2:31][CH2:32][N:26]([C:24]([O:23][CH2:21][CH3:22])=[O:25])[CH2:27][CH2:28]2)[CH2:7][CH2:8]1
Reactant: CCOC(=O)N1CCCC(=O)CC1
Reactant: CCOC(=O)C1(F)CCNCC1
Agent: Cl
Agent: O=C([O-])[O-]
Agent: [Cl-]
Solvent: O
Solvent: CO
Product: CCOC(=O)N1CCCC(N2CCC(F)(C(=O)OCC)CC2)CC1
Temperature: 50 °C
Reaction time: 2 h
Yield: 46.2 %

Procedure:
Ethyl 4-fluoropiperidine-4-carboxylate hydrochloride (3.00 g, 14.2 mmol) was dissolved in methanol (20 mL) and treated with K2CO3 (1.95 g, 14.2 mmol) in a minimum of water to de-salt. Reaction mixture was concentrated in vacuo and azeotroped to dryness with toluene. The residue and 4-oxoazepane-1-carboxylic acid ethyl ester (2.62 g, 14.2 mmol) were dissolved in methanol (50 mL) and zinc chloride (7.23 g, 56.7 mmol) was added. The reaction mixture was stirred at 50° C., under a nitrogen atmosphere, for 2 h then cooled to rt. NaCNBH4 (1.78 g, 28.4 mmol) was added and the reaction mixture was stirred at 50° C. overnight under nitrogen. The reaction mixture was cooled to rt and the solvents were removed in vacuo, the residue was diluted with DCM and treated with sat. NaHCO3 sol., the resulting heterogeneous mixture was filtered through a celite pad and the filtrate was washed with sat. NaHCO3 sol., sat. NaCl sol. and dried over MgSO4. The solvents were removed in vacuo, and the residue was purified by column chromatography (normal phase, [Biotage SNAP cartridge KP-sil 50 g, 40-63 μm, 60 Å, 50 mL per min, gradient 0% to 4% MeOH in DCM]) to give ethyl 4-[4-fluoro-4-(ethoxycarbonyl)piperidin-1-yl]azepane-1-carboxylate (2.26 g, 46%) as a colourless oil.
Reaction SMILES: [CH2:1]([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]([OH:20])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH:21]([C:23]([CH:25]1[CH2:29][CH2:28][N:27]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:26]1)=[O:24])[NH2:22].ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>C(Cl)Cl>[CH2:1]([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]([NH:22][NH:21][C:23]([CH:25]1[CH2:29][CH2:28][N:27]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:26]1)=[O:24])=[O:20])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
Reactant: CC(C)(C)OC(=O)N1CCC(C(=O)NN)C1
Reactant: O=C(O)[C@@H]1CC[C@@H]2CN1C(=O)N2OCc1ccccc1
Agent: CCN=C=NCCCN(C)C
Agent: Cl
Agent: On1nnc2ccccc21
Solvent: ClCCl
Product: CC(C)(C)OC(=O)N1CCC(C(=O)NNC(=O)[C@@H]2CC[C@@H]3CN2C(=O)N3OCc2ccccc2)C1
Temperature: 25 °C
Reaction time: 8 h

Procedure:
To a mixture of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0.304 g, 1.10 mmol) in DCM (20.0 mL) were added tert-butyl 3-(hydrazinecarbonyl)pyrrolidine-1-carboxylate 221 (0.380 g, 1.65 mmol), 1-hydroxybenzotriazole (0.223 g, 1.65 mmol) and 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride (0.315 g, 1.65 mmol) sequentially at room temperature. The mixture was stirred at room temperature overnight, concentrated to provide a residue which was subjected to chromatography to give 222 (0.48 g, slightly impure) as a white foam.
Reaction SMILES: [C:1](=O)([O-])[O-].[Na+].[Na+].S(OC)(OC)(=O)=O.[OH:14][C:15]1[CH:20]=[CH:19][C:18]([CH:21]=[CH:22][C:23](=[O:25])[CH3:24])=[CH:17][C:16]=1[O:26][CH2:27][CH3:28]>CC(C)=O>[CH3:1][O:14][C:15]1[CH:20]=[CH:19][C:18]([CH:21]=[CH:22][C:23](=[O:25])[CH3:24])=[CH:17][C:16]=1[O:26][CH2:27][CH3:28]
Reactant: O=C([O-])[O-]
Reactant: CCOc1cc(C=CC(C)=O)ccc1O
Agent: [Na+]
Solvent: COS(=O)(=O)OC
Solvent: CC(C)=O
Product: CCOc1cc(C=CC(C)=O)ccc1OC
Yield: 65.1 %

Procedure:
Anhydrous sodium carbonate (3.98 g) and dimethyl sulfate (3.78 g, 30 mmol) were added to a solution of 4-(4-hydroxy-3-ethoxyphenyl)-3-buten-2-one (6.2 g, 30 mmol) in acetone (40 ml). The reaction mixture was stirred under refluxing for 8 hr. The precipitated yellow solid was filtered, washed with acetone, and then recrystallized from anhydrous ethanol to give 4.3 g of a yellow crystal, mp 95-96° C., yield 65.3%.
Reaction SMILES: [OH:1][N:2]=[C:3](Cl)[C:4]1[CH:9]=[CH:8][CH:7]=[N:6][CH:5]=1.[C:11]([C:13]1[CH:20]=[CH:19][C:16]([C:17]#[N:18])=[CH:15][CH:14]=1)#[CH:12].N>>[N:6]1[CH:7]=[CH:8][CH:9]=[C:4]([C:3]2[CH:12]=[C:11]([C:13]3[CH:20]=[CH:19][C:16]([C:17]#[N:18])=[CH:15][CH:14]=3)[O:1][N:2]=2)[CH:5]=1
Reactant: C#Cc1ccc(C#N)cc1
Reactant: ON=C(Cl)c1cccnc1
Agent: N
Product: N#Cc1ccc(-c2cc(-c3cccnc3)no2)cc1

Procedure:
The titled compound was prepared as the hydrochloride salt according to Method CB using the product of Example 1A (78 mg, 0.5 mmol) and 4-ethynylbenzonitrile (Aldrich, 64 mg, 0.6 mmol). 1H NMR (300 MHz, DMSO-d6) δ7.69 (dd, J=8.0, 4.9 Hz, 2H), 7.96 (s, 1H), 8.03-8.20 (m, 3H), 8.39 (d, J=7.8 Hz, 1H), 8.78 (dd, J=4.7, 1.7 Hz, 1H), 9.16 (d, J=2.4 Hz, 1H) ppm; MS (DCI/NH3) m/z 248 (M+H)+.
Reaction SMILES: [CH3:1][C:2]1[N:7]=[C:6]([N:8]([CH2:46][CH2:47][CH2:48][CH3:49])[CH2:9][C:10]2[CH:15]=[CH:14][C:13]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=3[C:22]3[N:26](C(C4C=CC=CC=4)(C4C=CC=CC=4)C4C=CC=CC=4)[N:25]=[N:24][N:23]=3)=[CH:12][CH:11]=2)[C:5]([C:50]([O:52]CC)=[O:51])=[CH:4][N:3]=1.O.[OH-].[Li+].[ClH:58]>CO.C1COCC1.O>[ClH:58].[CH3:1][C:2]1[N:7]=[C:6]([N:8]([CH2:46][CH2:47][CH2:48][CH3:49])[CH2:9][C:10]2[CH:11]=[CH:12][C:13]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=3[C:22]3[NH:23][N:24]=[N:25][N:26]=3)=[CH:14][CH:15]=2)[C:5]([C:50]([OH:52])=[O:51])=[CH:4][N:3]=1
Reactant: CCCCN(Cc1ccc(-c2ccccc2-c2nnnn2C(c2ccccc2)(c2ccccc2)c2ccccc2)cc1)c1nc(C)ncc1C(=O)OCC
Agent: Cl
Agent: [Li+]
Agent: [OH-]
Solvent: O
Solvent: CO
Solvent: C1CCOC1
Product: CCCCN(Cc1ccc(-c2ccccc2-c2nnn[nH]2)cc1)c1nc(C)ncc1C(=O)O
Temperature: 25 °C
Reaction time: 2 h

Procedure:
The product of Example 1B (0.6 g, 0.842 mmole) was dissolved in 4 ml of methanol and 6 ml of THF. A solution of 180 mg of lithium hydroxide monohydrate in 1.5 ml of water was added and the mixture was refluxed for 5 hours. After cooling, 1 ml of concentrated hydrochloric acid was added and the mixture was stirred at room temperature for 2 hours. The resulting solution was concentrated under vacuum and 2 ml of water and 3 ml of ether was added to the residue. An oil which was insoluble in both layers formed. The oil was separated and crystallized from acetonitrile to provide 0.289 g of the desired product. M.p. 155°-158° C. 1H NMR (CD3OD) δ0.95 (t, 3H, J=7 Hz), 1.30 (m, 2H), 1.69 (m, 2H), 2.60 (s, 3H), 3.70 (m, 2H), 5.08 (m, 2H), 7.10 (d, 2H), 7.20 (s, 2H), 7.55 (d, 2H), 7.5-7.7 (m, 4H), 8.55 (s, 1H).
Reaction SMILES: [C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][NH:11][CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH2:14]([O:21][C:22]1[CH:27]=[C:26]([F:28])[CH:25]=[CH:24][C:23]=1[C:29](=[O:32])[CH2:30]Br)[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[CH2:14]([O:21][C:22]1[CH:27]=[C:26]([F:28])[CH:25]=[CH:24][C:23]=1[C:29](=[O:32])[CH2:30][N:11]1[CH2:12][CH2:13][N:8]([C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:7])[CH2:9][CH2:10]1)[C:15]1[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1
Reactant: O=C(CBr)c1ccc(F)cc1OCc1ccccc1
Reactant: CC(C)(C)OC(=O)N1CCNCC1
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: CN(C)C=O
Product: CC(C)(C)OC(=O)N1CCN(CC(=O)c2ccc(F)cc2OCc2ccccc2)CC1
Temperature: 25 °C
Reaction time: 18 h
Yield: 80.2 %

Procedure:
1-(tert-Butoxycarbonyl)piperazine (808 mg, 4.34 mmol) was added to a mixture of 2′-(benzyloxy)-2-bromo4′-fluoroacetophenone (assumed 4.13 mmol) and potassium carbonate (856 mg, 6.20 mmol) in DMF, and stirred for 18 h at room temperature. The solvent was removed in vacuo, the residue taken up in ethyl acetate (150 mL) and washed with water (100 mL) and brine (100 mL). The organice layer was dried (MgSO4) and the solvents removed in vacuo. The crude product was purified by flash chromatography, eluting with 9:1 hexane:EtOAc followed by 1:1 hexane:EtOAc to give pure 2′-(benzyloxy)-2-[4-(tert-butoxycarbonyl)piperazin-1-yl]-4′-fluoroacetophenone (1.42 g, 80% over 2 steps) as a yellow oil; Rf 0.00 (9:1 hexane:EtOAc), 0.50 (1:1 hexane:EtOAc); δH (CDCl3) 7.89 (1H, dd, J=9.3 and 6.9 Hz), 7.48-7.44 (5H, m), 6.81-6.77 (2H, m), 5.17 (2H, s), 3.79 (2H, s), 3.51-3.47 (4H, m), 2.44-2.41 (4H, m), 1.50 (9H, s); LCMS retention time 2.10 min, M+H+ 429.4.
Reaction SMILES: [CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[C:5]([O:9][CH3:10])[C:4]=1[CH:11]1[N:15]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][C:24]([F:27])([F:26])[F:25])=[CH:19][CH:18]=2)[C:14](=[O:28])[CH:13](O)[CH2:12]1.O=S(Cl)[Cl:32].N1C=CC=CC=1>O1CCOCC1>[Cl:32][CH:13]1[CH2:12][CH:11]([C:4]2[C:3]([O:2][CH3:1])=[CH:8][CH:7]=[CH:6][C:5]=2[O:9][CH3:10])[N:15]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][C:24]([F:27])([F:26])[F:25])=[CH:19][CH:18]=2)[C:14]1=[O:28]
Reactant: O=S(Cl)Cl
Reactant: COc1cccc(OC)c1C1CC(O)C(=O)N1Cc1ccc(OC(F)(F)F)cc1
Solvent: c1ccncc1
Solvent: C1COCCO1
Product: COc1cccc(OC)c1C1CC(Cl)C(=O)N1Cc1ccc(OC(F)(F)F)cc1
Temperature: 80 °C

Procedure:
A solution of rac-(3S*,5S*)-5-(2,6-dimethoxyphenyl)-3-hydroxy-1-(4-(trifluoromethoxy)-benzyl)pyrrolidin-2-one (200 mg; 0.48 mmol) in dioxane (1 ml) was treated at rt successively with SOCl2 (69 mg; 0.58 mmol) and pyridine (46 mg; 0.58 mmol). The resulting mixture was then heated to 80° C. for 3 h. After cooling to rt, the mixture was concentrated under reduced pressure before water and AcOEt were added. The separated organic layer was washed with brine, dried over anh. MgSO4, filtered, and concentrated to dryness under reduced pressure. Purification by FC (DCM/MeOH=50/1) afforded rac-(3R*,5S*)-3-chloro-5-(2,6-dimethoxyphenyl)-1-(4-(trifluoromethoxy)benzyl)pyrrolidin-2-one as a pale yellow solid. LC-MS (conditions A): tR=0.95 min.; [M+H]+: 430.20 g/mol.