Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [CH3:1][O:2][C:3](=[O:16])[C:4]1[CH:9]=[C:8](Cl)[N:7]=[C:6]([NH:11][C@H:12]([CH2:14][CH3:15])[CH3:13])[CH:5]=1.[CH3:17][N:18](C)C(=O)C>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2].[Zn].[C-]#N.[Zn+2].[C-]#N>[CH3:1][O:2][C:3](=[O:16])[C:4]1[CH:9]=[C:8]([C:17]#[N:18])[N:7]=[C:6]([NH:11][C@H:12]([CH2:14][CH3:15])[CH3:13])[CH:5]=1
Reactant: CC[C@H](C)Nc1cc(C(=O)OC)cc(Cl)n1
Reactant: CC(=O)N(C)C
Agent: [Fe+2]
Agent: [Pd]
Agent: O=C(/C=C/c1ccccc1)/C=C/c1ccccc1
Product: CC[C@H](C)Nc1cc(C(=O)OC)cc(C#N)n1
Temperature: 130 °C

Procedure:
Dissolve (S)-2-sec-butylamino-6-chloro-isonicotinic acid methyl ester (800 mg, 0.34 mmol), tris(dibenzylideneacetone)dipalladium (0) (120 mg, 0.13 mmol), 1,1′-bis(diphenylphosphino)ferrocene (146 mg, 0.26 mmol), zinc dust (52 mg) and zinc (II) cyanide (387 mg, 3.3 mmol) in N,N-dimethylacetamide (6.6 mL) ) in a previously nitrogen-filled sealed vessel. Flush the reactants with nitrogen before sealing and heat for 6 h at 130° C. Cool to room temperature, dilute with ethyl acetate and wash with 2 N ammonium hydroxide. Wash the organic layer with saturated aqueous sodium chloride, dry (magnesium sulfate), concentrate and purify (silica gel chromatography, eluting with 0:100 to 05:95 ethyl acetate:hexanes) to give the title compound.
Reaction SMILES: IC1C=CC=CC=1C(O)=O.OOS([O-])=O.[K+].[CH3:17][CH2:18][CH2:19][CH2:20][CH:21]([OH:26])[CH2:22][CH2:23][CH2:24][CH3:25]>[N+](C)([O-])=O>[CH3:17][CH2:18][CH2:19][CH2:20][C:21](=[O:26])[CH2:22][CH2:23][CH2:24][CH3:25]
Reactant: CCCCC(O)CCCC
Agent: O=C(O)c1ccccc1I
Agent: O=S([O-])OO
Agent: [K+]
Solvent: C[N+](=O)[O-]
Product: CCCCC(=O)CCCC
Temperature: 70 °C
Reaction time: 12 h

Procedure:
1.49 mg (0.006 mmol) of 2-iodobenzoic acid (product made in Aldrich company), 1.11 g (1.8 mmol) of powdered Oxone (registered trademark) and 433 mg (3 mmol) of 5-nonanol were added in 3.75 ml of nitromethane, and the mixture was heated at 70° C. while being stirred for 12 hours. After being heated, the mixture was cooled to room temperature, and the insoluble substance was removed by means of filtering. Water was added in the filtrate, extraction was carried out using diethyl ether. The organic phase was dried by using sodium sulfate, and then 5-nonanone was obtained by means of vacuum-concentration. The yield of the obtained 5-nonanone was determined and the result is shown in Table 1.
Reaction SMILES: F[C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1.[Cl:10][C:11]1[CH:16]=[CH:15][C:14]([SH:17])=[CH:13][CH:12]=1.C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C>[Cl:10][C:11]1[CH:16]=[CH:15][C:14]([S:17][C:2]2[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=2)=[CH:13][CH:12]=1
Reactant: O=Cc1ccc(F)cc1
Reactant: Sc1ccc(Cl)cc1
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: O
Solvent: CN(C)C=O
Product: O=Cc1ccc(Sc2ccc(Cl)cc2)cc1
Temperature: 90 °C
Yield: 63.8 %

Procedure:
A mixture of 4-fluorobenzaldehyde (12.6 mmol, 1.57 g), 4-chlorobenzenethiol (12.6 mmol, 1.81 g), K2CO3 (15.1 mmol, 2.09 g) in DMF (5.00 mL) was heated at 90° C. for 10 h. After cooling to room temperature, the reaction mixture was poured into a separatory funnel with water (100 mL). The phases were separated and the aqueous layer was extracted with CH2Cl2 (3×50 mL). The combined organic layers were washed with water (2×100 mL), brine (50 mL) and dried over MgSO4. Removal of the solvents in vacuo gave a light yellow liquid. Purification by flash column chromatography (eluent: 5% EtOAc in Hexane) provided 4-(4-chlorophenylthio)benzaldehyde (2.00 g, 76.0% yield) as a light yellow liquid. 1H NMR (CDCl3) δ 9.93 (s, 1H), 7.72 (d, J=8.3 Hz, 2H), 7.46-7.39 (m, 4H), 7.25 (d, J=8.3 Hz, 2H).
Reaction SMILES: [N+:1]([C:4]1[CH:9]=[CH:8][C:7]([CH2:10][CH2:11][CH2:12][CH2:13][OH:14])=[CH:6][CH:5]=1)([O-])=O.[H][H]>CO.[Pd]>[NH2:1][C:4]1[CH:5]=[CH:6][C:7]([CH2:10][CH2:11][CH2:12][CH2:13][OH:14])=[CH:8][CH:9]=1
Reactant: [H][H]
Reactant: O=[N+]([O-])c1ccc(CCCCO)cc1
Agent: [Pd]
Solvent: CO
Product: Nc1ccc(CCCCO)cc1
Yield: 77.1 %

Procedure:
4-(4-nitrophenyl)butanol (compound 19, 1.7 mL, 10.2 mmol) was dissolved in methanol (20 mL) to which 10% Palladium on carbon (0.2 g) was added and the mixture was hydrogenated using hydrogen gas (30 psi) at ambient temperature for 1 hr. The mixture was filtered through celite filter aid and solvent was evaporated from the filtrate under vacuum to give 1.3 g (77% yield) of crude product. Mass spectrum (M+H)+ calcd for C10H15NO 166.1. found 166.1.
Reaction SMILES: C(NC(C)C)(C)C.[Li]CCCC.[F:13][C:14]1[CH:22]=[CH:21][CH:20]=[C:19]2[C:15]=1[CH:16]=[CH:17][N:18]2[C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24].[B:30](OC(C)C)([O:35]C(C)C)[O:31]C(C)C>C1COCC1>[C:26]([O:25][C:23]([N:18]1[C:19]2[C:15](=[C:14]([F:13])[CH:22]=[CH:21][CH:20]=2)[CH:16]=[C:17]1[B:30]([OH:35])[OH:31])=[O:24])([CH3:29])([CH3:28])[CH3:27]
Reactant: CC(C)(C)OC(=O)n1ccc2c(F)cccc21
Reactant: CC(C)OB(OC(C)C)OC(C)C
Agent: [Li]CCCC
Solvent: C1CCOC1
Solvent: CC(C)NC(C)C
Product: CC(C)(C)OC(=O)n1c(B(O)O)cc2c(F)cccc21
Temperature: 0 °C
Reaction time: 0.67 h
Yield: 66.6 %

Procedure:
To a solution of diisopropylamine (175 mL, 1.25 mol) in THF (800 mL) at 0° C. was added n-BuLi (500 mL, 1.25 mol, 2.5 M in hexane) dropwise. The mixture was stirred at 0° C. for 40 min. Then the mixture was cooled to −78° C. Tert-butyl 4-fluoro-1H-indole-1-carboxylate (118 g, 0.50 mol) in THF (300 mL) was added dropwise slowly, followed by triisopropyl borate (231 mL, 1.00 mol). The mixture was stirred at −78° C. for another 40 min. The reaction was monitored by HPLC. When the reaction was completed, the reaction was quenched with NH4Cl (sat. 500 mL). Then the mixture was adjusted to pH=6 with 1 N HCl. Extracted with EtOAc (2000 mL) and the combined organic layers were washed with brine (500 mL), dried over Na2SO4, filtered and concentrated. The obtained solid was recrystallized with EtOAc and PE to give (1-(tert-butoxycarbonyl)-4-fluoro-1H-indol-2-yl)boronic acid (93 g, yield: 64%, store in fridge). 1H-NMR (CDCl3, 400 MHz) δ 7.77 (d, J=8.4 Hz, 1H), 7.57 (s, 1H), 7.44 (s, 2H), 7.24 (m, 1H), 6.90 (m, 1H), 1.66 (s, 9H). MS (M+H)+: 280.
Reaction SMILES: [O:1]1[CH2:5][CH2:4][C@@H:3]([OH:6])[CH2:2]1.C(N(CC)CC)C.[CH3:14][S:15](Cl)(=[O:17])=[O:16].O>C(Cl)Cl>[CH3:14][S:15]([O:6][C@@H:3]1[CH2:4][CH2:5][O:1][CH2:2]1)(=[O:17])=[O:16]
Reactant: CS(=O)(=O)Cl
Reactant: O[C@@H]1CCOC1
Solvent: CCN(CC)CC
Solvent: ClCCl
Solvent: O
Product: CS(=O)(=O)O[C@@H]1CCOC1
Temperature: 25 °C
Reaction time: 12 h
Yield: 46.7 %

Procedure:
A solution of (R)-tetrahydrofuran-3-ol (1.1 g, 12.5 mmol) and triethylamine (13.6 mL, 97.5 mmol) in CH2Cl2 was cooled in an ice-water bath. To this, methanesulfonyl chloride (3.0 mL, 39 mmol) diluted in CH2Cl2 (10 mL) was added dropwise. The reaction was left stirring for 12 hours at room temperature. Water was added, and organic phases extracted in CH2Cl2 (3×50 mL), which were subsequently dried onto silica and purified by silica gel chromatography (50% EtOAc:Hexanes to 100% EtOAc gradient) to afford (R)-tetrahydrofuran-3-yl methanesulfonate (0.97 g, brown oil, 47% yield).
Reaction SMILES: [I:1][C:2]1[CH:10]=[CH:9][CH:8]=[CH:7][C:3]=1[C:4](O)=[O:5].C(Cl)(=O)C([Cl:14])=O>CN(C=O)C.C(Cl)Cl>[I:1][C:2]1[CH:10]=[CH:9][CH:8]=[CH:7][C:3]=1[C:4]([Cl:14])=[O:5]
Reactant: O=C(Cl)C(=O)Cl
Reactant: O=C(O)c1ccccc1I
Solvent: CN(C)C=O
Solvent: ClCCl
Product: O=C(Cl)c1ccccc1I

Procedure:
2-Iodobenzoic acid (65.92 g, 0.266 mol), oxalyl chloride (40.5 g, 0.319 mol), CH2Cl2 (200 mL) and DMF (10 drops) were stirred at RT overnight. The reaction solution was concentrated, toluene was added and the solution concentrated to afford the crude 2-iodobenzoyl chloride.
Reaction SMILES: [Br:1][C:2]1[N:3]=[C:4]([Cl:16])[C:5]([NH:8][NH:9]C(=O)C(F)(F)F)=[N:6][CH:7]=1.Cl>CCO>[Br:1][C:2]1[N:3]=[C:4]([Cl:16])[C:5]([NH:8][NH2:9])=[N:6][CH:7]=1
Reactant: O=C(NNc1ncc(Br)nc1Cl)C(F)(F)F
Agent: Cl
Solvent: CCO
Product: NNc1ncc(Br)nc1Cl

Procedure:
To a solution of 512 mg of the product of Step B in EtOH (8.0 mL) was added concentrated HCl (1.0 mL) and the mixture was heated at reflux. After four h, the reaction was concentrated to dryness and the residue was dissolved in water and the pH adjusted to 8 with sat. sodium bicarbonate solution. The mixture was extracted with EtOAc (2×) and the organic extracts were dried over magnesium sulfate, filtered, and concentrated to provide (5-bromo-3-chloro-pyrazin-2-yl)-hydrazine as a light yellow solid. MS (M+H+)=224.2.
Reaction SMILES: [C:1]([O:5][C:6](=[O:11])[NH:7][CH2:8][CH2:9][OH:10])([CH3:4])([CH3:3])[CH3:2].[CH3:12][C:13]1[CH:18]=[CH:17][C:16]([S:19](Cl)(=[O:21])=[O:20])=[CH:15][CH:14]=1>N1C=CC=CC=1>[CH3:12][C:13]1[CH:18]=[CH:17][C:16]([S:19]([O:10][CH2:9][CH2:8][NH:7][C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:11])(=[O:21])=[O:20])=[CH:15][CH:14]=1
Reactant: CC(C)(C)OC(=O)NCCO
Reactant: Cc1ccc(S(=O)(=O)Cl)cc1
Solvent: c1ccncc1
Product: Cc1ccc(S(=O)(=O)OCCNC(=O)OC(C)(C)C)cc1
Temperature: -10 °C
Reaction time: 0.67 h

Procedure:
To a solution of tert-butyl(2-hydroxyethyl)carbamate (0.960 mL, 6.08 mmol) in pyridine (25 ml) was added 4-methylbenzene-1-sulfonyl chloride (2.341 g, 12.16 mmol) at −10° C. The solution was stirred at −10° C. for 40 min. The reaction mixture was stored in a fridge at 4° C. for 4 days. It was poured into ice water and extracted with ethyl acetate. The combined organic layers were washed aqueous citric acid (10%), dried using MgSO4, filtered and evaporated to give the title compound as a yellow oil. (UPLC-MS 3) ESI-MS 316.2 [M+H]+. 1H NMR (600 MHz, CDCl3) δ 7.79 (d, 2H), 7.36 (d, 2H), 4.84 (s, 1H), 4.06 (t, 2H), 3.41-3.35 (m, 2H), 2.45 (s, 3H), 1.40 (s, 9H).
Reaction SMILES: C(Cl)(=O)C(Cl)=O.CS(C)=O.[C:11]([N:18]1[CH2:23][CH2:22][CH:21]([CH2:24][CH2:25]O)[CH2:20][CH2:19]1)([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12].C(N(CC)CC)C.[C:34]([CH:39]=P(C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)([O:36][CH2:37][CH3:38])=[O:35]>C(Cl)Cl>[C:11]([N:18]1[CH2:19][CH2:20][CH:21]([CH2:24]/[CH:25]=[CH:39]/[C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH2:22][CH2:23]1)([O:13][C:14]([CH3:15])([CH3:16])[CH3:17])=[O:12]
Reactant: CC(C)(C)OC(=O)N1CCC(CCO)CC1
Reactant: CCOC(=O)C=P(c1ccccc1)(c1ccccc1)c1ccccc1
Agent: O=C(Cl)C(=O)Cl
Solvent: CS(C)=O
Solvent: CCN(CC)CC
Solvent: ClCCl
Product: CCOC(=O)/C=C/CC1CCN(C(=O)OC(C)(C)C)CC1
Yield: 54.8 %

Procedure:
To a stirred solution of oxalyl chloride (0.43 mL, 5.0 mmol) in CH2Cl2 (20 mL) at -78° C. was added DMSO (0.52 ml, 7.0 mmol) dropwise. After gas evolution subsided (~5 minutes) the alcohol 9 (0.8 g, 3.5 mmol) in CH2Cl2 (20 mL) was added in a stream. After 20 minutes triethylamine (1.7 mL, 12 mmol) was added dropwise and then the cooling bath removed. After 20 minutes (carbethoxymethylene) triphenylphosphorane (1.4 g, 4.0 mmol) was added. After 2.0 hours the reaction mixture was diluted with petroleum ether and then washed sequentially with H2O, 5% KHSO4, and brine, dried (MgSO4), and concentrated. Flash chromatography (silica, 15% ethyl acetate/hexanes) gave the ester 10 (0.57 g) as a colorless oil.
Reaction SMILES: [C:1]([CH2:3][C:4]1[CH:18]=[CH:17][C:7]([CH2:8][CH:9]([C:14](=O)[CH3:15])[C:10](OC)=[O:11])=[CH:6][CH:5]=1)#[N:2].[NH2:19][C:20]([NH2:22])=[NH:21].C(O)(=O)C>CCO>[NH2:22][C:20]1[N:21]=[C:10]([OH:11])[C:9]([CH2:8][C:7]2[CH:17]=[CH:18][C:4]([CH2:3][C:1]#[N:2])=[CH:5][CH:6]=2)=[C:14]([CH3:15])[N:19]=1
Reactant: COC(=O)C(Cc1ccc(CC#N)cc1)C(C)=O
Reactant: N=C(N)N
Solvent: CCO
Solvent: CC(=O)O
Product: Cc1nc(N)nc(O)c1Cc1ccc(CC#N)cc1

Procedure:
A mixture of the crude product from step (i) and guanidine (16 g) in EtOH (350 ml) was heated under reflux for 5 h. The mixture was cooled, neutralised with acetic acid, and the solid filtered and dried, 22.1 g.
Reaction SMILES: [C:1]1([CH:7]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[O:8][CH:9]2[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][CH2:17][NH2:18])[CH2:11][CH2:10]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Cl[C:26]1[CH:27]=[CH:28][C:29]2[N:30]([CH:32]=[C:33]([C:35]([CH3:42])([CH3:41])[C:36]([O:38][CH2:39][CH3:40])=[O:37])[N:34]=2)[N:31]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(OCC)(=O)C>[C:19]1([CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[O:8][CH:9]2[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][CH2:17][NH:18][C:26]3[CH:27]=[CH:28][C:29]4[N:30]([CH:32]=[C:33]([C:35]([CH3:41])([CH3:42])[C:36]([O:38][CH2:39][CH3:40])=[O:37])[N:34]=4)[N:31]=3)[CH2:11][CH2:10]2)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1
Reactant: CCOC(=O)C(C)(C)c1cn2nc(Cl)ccc2n1
Reactant: NCCCN1CCC(OC(c2ccccc2)c2ccccc2)CC1
Agent: O=C([O-])[O-]
Agent: [Na+]
Solvent: CCOC(C)=O
Product: CCOC(=O)C(C)(C)c1cn2nc(NCCCN3CCC(OC(c4ccccc4)c4ccccc4)CC3)ccc2n1
Temperature: 193.5 °C
Reaction time: 3.5 h
Yield: 49.2 %

Procedure:
A mixture of 12.12 g (37.4 mmol) of 4-(diphenylmethoxy)-1-piperidinepropaneamine, 10.00 g (37.4 mmol) of ethyl 2-(6-chloroimidazo[1,2-b]pyridazin-2-yl)-2-methylpropionate and 3.94 g (37.4 mmol) of sodium carbonate was heated to 192-195° C. and stirred for 3.5 hours. After cooling to room temperature, 100 mL of ethyl acetate was added and dissolved, and then washed with 100 mL and 50 mL of water. The organic layer was concentrated under reduced pressure. The residue was subjected to silica gel chromatography to be eluted with ethyl acetate:methanol:triethyl amine (100:5:1). The desired fraction was collected and concentrated to provide 10.22 g of the crude title compound. HPLC purity area percentage 90.9%, Yield 44.7%.
Reaction SMILES: [C:1]1([CH:7]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[O:8][CH:9]2[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][CH2:17][NH2:18])[CH2:11][CH2:10]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Cl[C:26]1[CH:27]=[CH:28][C:29]2[N:30]([CH:32]=[C:33]([C:35]([CH3:42])([CH3:41])[C:36]([O:38][CH2:39][CH3:40])=[O:37])[N:34]=2)[N:31]=1.O.C(=O)([O-])O.[Na+]>CN1CCCC1=O>[C:19]1([CH:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[O:8][CH:9]2[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][CH2:17][NH:18][C:26]3[CH:27]=[CH:28][C:29]4[N:30]([CH:32]=[C:33]([C:35]([CH3:41])([CH3:42])[C:36]([O:38][CH2:39][CH3:40])=[O:37])[N:34]=4)[N:31]=3)[CH2:11][CH2:10]2)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1
Reactant: CCOC(=O)C(C)(C)c1cn2nc(Cl)ccc2n1
Reactant: NCCCN1CCC(OC(c2ccccc2)c2ccccc2)CC1
Agent: O=C([O-])O
Agent: [Na+]
Solvent: O
Solvent: CN1CCCC1=O
Product: CCOC(=O)C(C)(C)c1cn2nc(NCCCN3CCC(OC(c4ccccc4)c4ccccc4)CC3)ccc2n1
Temperature: 193 °C
Reaction time: 4.5 h
Yield: 92.5 %

Procedure:
In 13.4 mL of N-methyl-2-pyrrolidinone were dissolved 6.49 g (20 mmol) of 4-(diphenylmethoxy)-1-piperidinepropaneamine and 2.68 g (10.0 mmol) of ethyl 2-(6-chloroimidazo[1,2-b]pyridazin-2-yl)-2-methylpropionate, heated to 191-195° C. under a nitrogen atmosphere and stirred for 4.5 hours. After cooling to room temperature, 20 mL of water and 1.01 g (2 mmol) of sodium hydrogencarbonate were added and extracted twice with 30 mL of ethyl acetate. The extract was washed with 20 mL of water three times and the organic layer was concentrated under reduced pressure. The residue was subjected to silica gel chromatography to be eluted with ethyl acetate:methanol:triethylamine (100:5:1). The desired fraction was collected and concentrated to provide 5.14 g of the crude title compound. Purity 83%, yield 77%, determined from the integral values of the proton NMR.
Reaction SMILES: [OH-].[Li+].[F:3][C:4]1[CH:5]=[C:6]([CH:11]2[CH2:16][N:15]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH:14]([CH:24]3[CH2:29][CH2:28][O:27][CH2:26][CH2:25]3)[C:13](=[O:30])[N:12]2[CH2:31][C:32]([O:34]C)=[O:33])[CH:7]=[C:8]([F:10])[CH:9]=1.Cl>C1COCC1.O>[C:20]([O:19][C:17]([N:15]1[CH2:16][CH:11]([C:6]2[CH:5]=[C:4]([F:3])[CH:9]=[C:8]([F:10])[CH:7]=2)[N:12]([CH2:31][C:32]([OH:34])=[O:33])[C:13](=[O:30])[CH:14]1[CH:24]1[CH2:25][CH2:26][O:27][CH2:28][CH2:29]1)=[O:18])([CH3:23])([CH3:21])[CH3:22]
Reactant: COC(=O)CN1C(=O)C(C2CCOCC2)N(C(=O)OC(C)(C)C)CC1c1cc(F)cc(F)c1
Agent: Cl
Agent: [Li+]
Agent: [OH-]
Solvent: O
Solvent: C1CCOC1
Product: CC(C)(C)OC(=O)N1CC(c2cc(F)cc(F)c2)N(CC(=O)O)C(=O)C1C1CCOCC1
Temperature: 25 °C
Reaction time: 2 h

Procedure:
12 mg (0.48 mmol) lithium hydroxide were added to 0.20 g (0.43 mmol) tert-butyl 5-(3,5-difluorophenyl)-4-(2-methoxy-2-oxoethyl)-3-oxo-2-(tetrahydro-2H-pyran-4-yl)piperazine-1-carboxylate (isomer mixture 2.1) in 5 ml THF and 1 ml of water. The mixture was stirred for 2 h at RT, adjusted to pH=7 with 0.1 M hydrochloric acid solution and then evaporated to dryness.
Reaction SMILES: [C:1]1(=O)[O:5][CH2:4][CH2:3][O:2]1.O[C:8]1[CH:21]=[CH:20][C:11]([C:12]([C:14]2[CH:19]=[CH:18]C=[CH:16][CH:15]=2)=[O:13])=[CH:10][CH:9]=1.C1(C)C=CC=CC=1>[I-].[Na+].C1(C)C=CC=CC=1.O>[OH:2][CH2:3][CH2:4][O:5][C:1]1[CH:18]=[CH:19][C:14]([C:12]([C:11]2[CH:20]=[CH:21][CH:8]=[CH:9][CH:10]=2)=[O:13])=[CH:15][CH:16]=1
Reactant: O=C(c1ccccc1)c1ccc(O)cc1
Reactant: O=C1OCCO1
Agent: [I-]
Agent: [Na+]
Solvent: O
Solvent: Cc1ccccc1
Product: O=C(c1ccccc1)c1ccc(OCCO)cc1
Temperature: 176 °C
Reaction time: 0.5 h
Yield: 94.3 %

Procedure:
A mixture of ethylene carbonate (124.6 g; 1.07 eq.), sodium iodide (6.3 g; 0.03 eq.), 4-hydroxybenzophenone (262 g; 1 eq.) and toluene (8.1 g) was heated. At 99° C. a clear solution was obtained. The reaction mixture was heated with reflux condenser to 176° C. over one hour, during which gas evolution occurred. After an additional ½ hour at 176° C., the reaction mixture was cooled to 122° C. and toluene (350 g) and water (24 g) was added. The lower phase was cut and discarded. More water (14 g) was added and the lower phase was again cut and discarded. Water and toluene (95 g in total) was azeotropically removed, reaching a boiling point of 111° C. More toluene (114 g) was added and the product was isolated by filtration at 8° C. In total, 302 g of 4-(2-hydroxyethoxy)benzophenone (94%) was obtained after drying as white crystals (99.8% chromatographic purity).
Reaction SMILES: [Br:1]Br.[C:3]([O:12][CH3:13])(=[O:11])[C:4]1[C:5](=[CH:7][CH:8]=[CH:9][CH:10]=1)[OH:6]>C(O)(=O)C>[Br:1][C:9]1[CH:8]=[CH:7][C:5]([OH:6])=[C:4]([CH:10]=1)[C:3]([O:12][CH3:13])=[O:11]
Reactant: COC(=O)c1ccccc1O
Reactant: BrBr
Solvent: CC(=O)O
Product: COC(=O)c1cc(Br)ccc1O
Temperature: 25 °C
Reaction time: 10 h
Yield: 83 %

Procedure:
Br2 (52 g) was slowly added to a stirred solution of methyl salicylate (50 g; 330 mmol) in 300 mL acetic acid. The reaction mixture was stirred at rt. for 10 h, poured on ice-water and the precipitate recrystallized from MeOH, giving the sub-title compound in a 83% yield.
Reaction SMILES: [CH3:1][C:2]1[S:6][C:5]([C:7]#[N:8])=[CH:4][CH:3]=1.[Br:9]N1C(=O)CCC1=O>C(Cl)(Cl)(Cl)Cl.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>[Br:9][CH2:1][C:2]1[S:6][C:5]([C:7]#[N:8])=[CH:4][CH:3]=1
Reactant: O=C1CCC(=O)N1Br
Reactant: Cc1ccc(C#N)s1
Agent: O=C(OOC(=O)c1ccccc1)c1ccccc1
Solvent: ClC(Cl)(Cl)Cl
Product: N#Cc1ccc(CBr)s1
Yield: 86.1 %

Procedure:
A mixture of 5-methylthiophene-2-carbonitrile (9.9 g, 80.5 mmol), benzoylperoxide (0.23 g, 0.95 mmol), and N-bromosuccinimide (15 g, 84.3 mmol) in carbontetrachloride (200 mL) was heated at reflux for 6 h. The resulting suspension was filtered and the filtrate diluted with dichloromethane (400 mL), washed with a saturated sodium bicarbonate solution, dried over magnesium sulfate, and concentrated in vacuo. The residue was purified by column chromatography (EtOAc: n-hexane, 1:4) to give the title compound as a yellow oil (14.0 g, 86%).
Reaction SMILES: [C:1]([C:3]1[S:4][C:5]([CH3:8])=[CH:6][CH:7]=1)#[N:2].[Br:9]N1C(=O)CCC1=O.N(C(C)(C)C#N)=NC(C)(C)C#N>C(Cl)(Cl)(Cl)Cl>[C:1]([C:3]1[S:4][C:5]([CH2:8][Br:9])=[CH:6][CH:7]=1)#[N:2]
Reactant: O=C1CCC(=O)N1Br
Reactant: Cc1ccc(C#N)s1
Agent: CC(C)(C#N)N=NC(C)(C)C#N
Solvent: ClC(Cl)(Cl)Cl
Product: N#Cc1ccc(CBr)s1
Temperature: 25 °C
Yield: 92.8 %

Procedure:
A solution of 2-cyano-5-methylthiophene (compound 3-2, 3.0 g, 24 mmol), N-bromosuccinimide (Aldrich, 4.8 g, 27 mmol), and 2,2′-azobisisobutyronitrile (Aldrich, 0.4 g, 2.4 mmol) in CCl4 (Aldrich, 60 ml) was heated at reflux for 5 hours. After cooling to ambient temperature, the solvent was removed under vacuum to give a yellow oil. The oil was purified by a flash column chromatography (1:1 hexane/ethyl acetate) to give the title compound (4.5 g, 91%). TLC: Rf 0.91 (1:1 of hexane/ethyl acetate); 1H NMR (CDCl3): δ 4.66 (s, 2H), 7.10 (d, 1H, J=3.8 Hz), 7.48 (d, 1H, J=3.8 Hz).
Reaction SMILES: [CH:1]1([CH:7]([NH:19][C:20]2[N:25]=[CH:24][C:23]([C:26]([N:28]([CH3:36])[CH2:29][CH2:30][C:31]([O:33]CC)=[O:32])=[O:27])=[CH:22][CH:21]=2)[C:8]2[O:9][C:10]3[CH:17]=[CH:16][C:15]([F:18])=[CH:14][C:11]=3[C:12]=2[CH3:13])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.CCCCCC.CC(O)C.C(O)C.[OH-].[Li+]>O1CCCC1>[CH:1]1([CH:7]([NH:19][C:20]2[N:25]=[CH:24][C:23]([C:26]([N:28]([CH3:36])[CH2:29][CH2:30][C:31]([OH:33])=[O:32])=[O:27])=[CH:22][CH:21]=2)[C:8]2[O:9][C:10]3[CH:17]=[CH:16][C:15]([F:18])=[CH:14][C:11]=3[C:12]=2[CH3:13])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1
Reactant: CCOC(=O)CCN(C)C(=O)c1ccc(NC(c2oc3ccc(F)cc3c2C)C2CCCCC2)nc1
Agent: [Li+]
Agent: [OH-]
Solvent: C1CCOC1
Solvent: CCCCCC
Solvent: CC(C)O
Product: Cc1c(C(Nc2ccc(C(=O)N(C)CCC(=O)O)cn2)C2CCCCC2)oc2ccc(F)cc12
Temperature: 25 °C
Reaction time: 1 h

Procedure:
Ethyl 3-{[(6-{[cyclohexyl(5-fluoro-3-methyl-1-benzofuran-2-yl)methyl]amino}pyridin-3-yl)carbonyl](methyl)amino}propanoate (4.06 g) synthesized in Example A52(1) was fractionated by high performance liquid chromatography (column: CHIRALPAK AD (50 mm ID×500 mmL, manufactured by Daicel Chemical Industries, Ltd., mobile phase: hexane/2-propanol (700/300-200/800), flow rate: 60 mL/min, column temperature: room temperature). The fraction containing an optically active form having a longer retention time under the above-mentioned high performance liquid chromatography conditions was concentrated to give an amorphous form (1.96 g, 99.9% ee). To a mixture of the obtained amorphous form, ethanol (10 mL) and tetrahydrofuran (10 mL) was added 1N lithium hydroxide aqueous solution (8 mL), and the mixture was stirred at room temperature for 1 hr and concentrated under reduced pressure. The residue was dissolved in water (10 mL), and 1N hydrochloric acid (8 mL) was added at 0° C. The resulting precipitate was collected by filtration to give the title object compound (1.80 g, 99%, 99.9% ee) as a white solid.
Reaction SMILES: [NH:1]1[CH2:6][CH2:5][CH:4]([OH:7])[CH2:3][CH2:2]1.[C:8]1(=O)[CH2:11][CH2:10][CH2:9]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(Cl)CCl>[CH:8]1([N:1]2[CH2:6][CH2:5][CH:4]([OH:7])[CH2:3][CH2:2]2)[CH2:11][CH2:10][CH2:9]1
Reactant: O=C1CCC1
Reactant: OC1CCNCC1
Agent: CC(=O)O[BH-](OC(C)=O)OC(C)=O
Agent: [Na+]
Solvent: ClCCCl
Product: OC1CCN(C2CCC2)CC1
Temperature: 25 °C
Reaction time: 5 h
Yield: 81.3 %

Procedure:
A solution of 4-piperidinol (80 g, 0.792 moles) and cyclobutanone (67.2 g, 0.96 moles) in ethylene dichloride (1 L) was treated with sodium triacetoxyborohydride (251.1 g, 1.184 moles) portion wise and the mixture was stirred at room temperature for 5 hours. The reaction mixture was quenched in chilled water (1 L) and the resulting mass was basified with lye solution. The layers were separated, and the aqueous layer was extracted with dichloromethane (2×500 mL). The combined organic layers were washed with water, dried over sodium sulfate and concentrated to afford the title compound 100 g (Yield: 81.46%).