Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: Cl[C:2]1[N:10]=[C:9]2[C:5]([NH:6][CH:7]=[N:8]2)=[C:4](Cl)[N:3]=1.C(OCC)(=O)C.O1C=CCCC1.Cl.CN>C(N(CC)CC)C>[N:3]1[CH:4]=[C:5]2[C:9]([N:8]=[CH:7][NH:6]2)=[N:10][CH:2]=1
Reactant: Clc1nc(Cl)c2[nH]cnc2n1
Agent: C1=COCCC1
Agent: CN
Agent: Cl
Solvent: CCN(CC)CC
Solvent: CCOC(C)=O
Product: c1ncc2[nH]cnc2n1
Temperature: 25 °C
Reaction time: 0.08 h
Yield: 173.1 %

Procedure:
In a 100 ml three-mouth bottle, 2,6-dichloropurine (10 g), ethyl acetate (50 ml), pyridinium salt of paratoluenesulfonic acid (0.2 g) are mixed. The above mixture is stirred and heated to a temperature of 35° C., 2,3-dihydropyrane (12 ml) is added thereto within 5 min. The reaction mixture is reacted at 50˜60° C. for 3 h. The completion of reaction is checked with TCL analysis. Methylamine hydrochloride (4.6 g) is added to the bottle, and then triethylamine (21 ml) is added thereto at the temperature within 30 min, and the above mixture is reacted at the temperature for 1 h. The completion of reaction is checked with TCL analysis. The reaction mixture is cooled to room temperature. After filtration, a filter cake is completely washed with ethyl acetate, and a filtrate is washed with water for 3 times and delaminated. Organic layer is concentrated till large amounts of solid is separated out. After filtration, a filter cake is washed with ethyl acetate for 3 times and then dried in vacuum at 50° C. for 5 h to obtain solid purin (11.0 g). The yield is about 77.7%.
Reaction SMILES: [C:1]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([N:17]3[C:25]4[C:20](=[CH:21][C:22]([CH3:26])=[CH:23][CH:24]=4)[CH:19]=[N:18]3)[N:15]=2)[N:10](COCC[Si](C)(C)C)[CH:9]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].FC(F)(F)C(O)=O>ClCCl>[C:1]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([N:17]3[C:25]4[C:20](=[CH:21][C:22]([CH3:26])=[CH:23][CH:24]=4)[CH:19]=[N:18]3)[N:15]=2)[NH:10][CH:9]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]
Reactant: Cc1ccc2c(cnn2-c2cnc3c(n2)c(C(=O)NC(C)(C)C)cn3COCC[Si](C)(C)C)c1
Solvent: O=C(O)C(F)(F)F
Solvent: ClCCl
Product: Cc1ccc2c(cnn2-c2cnc3[nH]cc(C(=O)NC(C)(C)C)c3n2)c1
Reaction time: 15 h
Yield: 26.1 %

Procedure:
To a stirred solution of N-tert-butyl-2-(5-methyl-1H-indazol-1-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (0.1 g, 209 μmol) in dichloromethane (3 mL) was added trifluoroacetic acid (1 mL). After 15 h, the mixture was concentrated in vacuo then 25 mL of a Jan. 10, 1960 mixture of ammonium hydroxide/methanol/dichloromethane added. After 1 h the mixture was concentrated in vacuo. Purification by chromatography (silica, 24 g Analogix column, 0-4% methanol containing 10% ammonium hydroxide in dichloromethane) gave 2-(5-methyl-indazol-1-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid tert-butylamide (19 mg, 26%). MS (M+H)+=349; 1H NMR (DMSO-d6) δ: 9.03 (s, 1H), 8.49 (d, J=8.5 Hz, 1H), 8.43-8.46 (m, 2H), 8.39 (d, J=3.0 Hz, 1H), 7.73 (s, 1H), 7.65 (s, 1H), 2.48 (br. s., 3H), 1.52 (s, 9H).
Reaction SMILES: C([C:8]1[C:17](=[O:18])[C:16]2[C:11](=[CH:12][C:13]([Cl:19])=[CH:14][CH:15]=2)[O:10][C:9]=1[CH:20]([NH:24][CH2:25][CH2:26][NH:27][C:28](=O)[C:29]1[CH:34]=[CH:33][C:32]([CH3:35])=[CH:31][CH:30]=1)[CH:21]([CH3:23])[CH3:22])C1C=CC=CC=1.P(Cl)(Cl)(Cl)=O.[C:42]1([CH3:48])[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=1>>[CH2:48]([C:8]1[C:17](=[O:18])[C:16]2[C:11](=[CH:12][C:13]([Cl:19])=[CH:14][CH:15]=2)[O:10][C:9]=1[CH:20]([N:24]1[CH2:25][CH2:26][N:27]=[C:28]1[C:29]1[CH:34]=[CH:33][C:32]([CH3:35])=[CH:31][CH:30]=1)[CH:21]([CH3:23])[CH3:22])[C:42]1[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=1
Reactant: Cc1ccc(C(=O)NCCNC(c2oc3cc(Cl)ccc3c(=O)c2Cc2ccccc2)C(C)C)cc1
Reactant: Cc1ccccc1
Solvent: O=P(Cl)(Cl)Cl
Product: Cc1ccc(C2=NCCN2C(c2oc3cc(Cl)ccc3c(=O)c2Cc2ccccc2)C(C)C)cc1
Temperature: 85 °C
Yield: 50 %

Procedure:
A mixture of N-{2-[1-(3-benzyl-7-chloro-4-oxo-4H-chromen-2-yl)-2-methyl-propylamino]-ethyl}-4-methyl-benzamide (2.8 g, 5.5 mmol) and phosphorus oxychloride (9.4 mL, 100 mmol) in toluene (60 mL) was heated at 85° C. for 7 hours, then heated at reflux for 1 hour. The reaction was concentrated and the residual phosphorus oxychloride removed by toluene azeotrope. The residue was diluted with ethyl acetate (100 mL) and washed with saturated sodium bicarbonate (100 mL) and brine (100 mL), dried over magnesium sulfate, and concentrated. The resultant residue was purified by flash chromatography (0→8% methanol/methylene chloride) to give 1.4 g (50%) of the title compound. MS(ES+) m/e 485 [M+H]+.
Reaction SMILES: C([Li])CCC.[C:6]1(=[O:13])[NH:12][CH2:11][CH2:10][CH2:9][CH2:8][CH2:7]1.C[O:15][C:16]1[CH2:21][CH2:20][CH2:19][C:18](=O)[CH:17]=1.Cl>O1CCCC1>[O:15]=[C:16]1[CH2:21][CH2:20][CH2:19][C:18]([CH:7]2[CH2:8][CH2:9][CH2:10][CH2:11][NH:12][C:6]2=[O:13])=[CH:17]1
Reactant: O=C1CCCCCN1
Reactant: COC1=CC(=O)CCC1
Agent: Cl
Agent: [Li]CCCC
Solvent: C1CCOC1
Product: O=C1C=C(C2CCCCNC2=O)CCC1
Reaction time: 0.83 h

Procedure:
Butyllithium (143 ml of 1.4 molar solution in hexane) was added dropwise to a stirred solution of caprolactam (11.3 g) in dry tetrahydrofuran under nitrogen. After stirring for 50 minutes at 0°, 3-methoxy-2-cyclohexenone (12.6 g) in tetrahydrofuran was added. After a further 30 minutes the reaction was poured onto 5 M hydrochloric acid. The organic layer was separated and the aqueous layer was extracted with chloroform. The combined organic layers were dried over magnesium sulphate. Removal of the solvent under reduced pressure left 15 g of a yellow solid. The product was recrystallised from ethyl acetate affording 2.5 g of the title compound identical to that described in Example 17.
Reaction SMILES: [F:1][C:2]([F:11])([F:10])[C:3]1[CH:8]=[CH:7][N:6]=[C:5]([OH:9])[N:4]=1.[I-].C[N+]1C=CN([C:19](=[O:28])[N:20]([CH3:27])[C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)C=1.C(N(CC)CC)C>C(#N)C>[F:11][C:2]([F:1])([F:10])[C:3]1[CH:8]=[CH:7][N:6]=[C:5]([O:9][C:19](=[O:28])[N:20]([CH3:27])[C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[N:4]=1
Reactant: Oc1nccc(C(F)(F)F)n1
Reactant: CN(C(=O)n1cc[n+](C)c1)c1ccccc1
Agent: [I-]
Solvent: CC#N
Solvent: CCN(CC)CC
Product: CN(C(=O)Oc1nccc(C(F)(F)F)n1)c1ccccc1
Yield: 39.3 %

Procedure:
A solution of 4-(trifluoromethyl)-2-pyrimidol (0.49 g, 3.00 mmol), 1-methyl-3-(methyl-phenyl-carbamoyl)-3H-imidazol-1-ium iodide (1.03 g, 3.00 mmol) and triethylamine (0.42 ml, 3.00 mmol) in acetonitrile (15 ml) was stirred at room temperature for 3 days. The solvent was evaporated in vacuo and the residue was purified by flash column chromatography (SiO2, ethyl acetate:heptane (30:70)) yielding the title compound (0.35 g, 39% yield) as a colourless oil.
Reaction SMILES: [C:1]([S:4][C@@H:5]1[CH2:9][N:8]([C:10]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][C:17]([N+:20]([O-:22])=[O:21])=[CH:16][CH:15]=2)=[O:11])[C@H:7]([C:23]([N:25]2[CH2:30][CH2:29][N:28]([CH2:31][CH2:32][OH:33])[CH2:27][CH2:26]2)=[O:24])[CH2:6]1)(=[O:3])[CH3:2]>C(Cl)Cl.CN(C)C1C=CN=CC=1.C(OCC)(=O)C>[C:1]([S:4][C@@H:5]1[CH2:9][N:8]([C:10]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][C:17]([N+:20]([O-:22])=[O:21])=[CH:16][CH:15]=2)=[O:11])[C@H:7]([C:23]([N:25]2[CH2:30][CH2:29][N:28]([CH2:31][CH2:32][O:33][C:10]([O:12][CH2:13][C:14]3[CH:15]=[CH:16][C:17]([N+:20]([O-:22])=[O:21])=[CH:18][CH:19]=3)=[O:11])[CH2:27][CH2:26]2)=[O:24])[CH2:6]1)(=[O:3])[CH3:2]
Reactant: CC(=O)S[C@H]1C[C@@H](C(=O)N2CCN(CCO)CC2)N(C(=O)OCc2ccc([N+](=O)[O-])cc2)C1
Agent: CN(C)c1ccncc1
Solvent: CCOC(C)=O
Solvent: ClCCl
Product: CC(=O)S[C@H]1C[C@@H](C(=O)N2CCN(CCOC(=O)OCc3ccc([N+](=O)[O-])cc3)CC2)N(C(=O)OCc2ccc([N+](=O)[O-])cc2)C1
Reaction time: 2 h
Yield: 166.2 %

Procedure:
A solution of 1.10 g of N-nitrobenzyl chloroformate in 10 ml of methylene chloride was added, whilst ice-cooling, to a solution of 1.63 g of (2S,4S)-4-acetylthio-2-[4-(2-hydroxyethyl)-1-piperazinylcarbonyl]-1-(4-nitrobenzyloxycarbonyl)pyrrolidine and 0.62 g of 4-dimethylaminopyridine in 15 ml of methylene chloride and the resulting mixture was stirred at the same temperature for 2 hours. At the end of this time, the reaction mixture was diluted with 100 ml of ethyl acetate, and the dilute solution was washed, in turn, with 100 ml of an aqueous solution of sodium hydrogencarbonate, with 100 ml of water and with 100 ml of an aqueous solution of sodium chloride. The solvent was removed by distillation under reduced pressure, and the resulting residue was purified by column chromatography through silica gel, using a gradient elution method, with mixtures of ethyl acetate and methanol ranging from 30:1 to 25:1 by volume as the eluent to give 1.86 g of the title compound, as a powder. The infrared absorption spectrum and nuclear magnetic resonance spectrum of the compound thus obtained were identical with those of the compound prepared as described in step 90(b)(ii) above.
Reaction SMILES: [CH3:1][O:2][C:3]([C:5]1[S:9][C:8]2[CH2:10][CH2:11][CH2:12][CH2:13][C:7]=2[C:6]=1I)=[O:4].[CH2:15]([OH:18])[C:16]#[CH:17].C(N(CC)CC)C>C(#N)C.[Cu]I>[CH3:1][O:2][C:3]([C:5]1[S:9][C:8]2[CH2:10][CH2:11][CH2:12][CH2:13][C:7]=2[C:6]=1[C:17]#[C:16][CH2:15][OH:18])=[O:4]
Reactant: COC(=O)c1sc2c(c1I)CCCC2
Reactant: C#CCO
Agent: [Cu]I
Solvent: CCN(CC)CC
Solvent: CC#N
Product: COC(=O)c1sc2c(c1C#CCO)CCCC2
Temperature: 85 °C
Yield: 72.9 %

Procedure:
To a solution of 3-Iodo-4,5,6,7-tetrahydro-benzo[b]thiophene-2-carboxylic acid methyl ester (15 g, 46.6 mmol) and prop-2-yn-1-ol (5.22 g, 93 mmol) in Acetonitrile (100 mL) was added Pd(PPh3)2Cl (3.27 g, 4.66 mmol), copper(I) iodide (0.89 g, 4.66 mmol) and triethylamine (14 g, 140 mmol). The mixture was heated at 85° C. reflux under N2 for 3 hrs. The reaction was cooled to room temperature, and concentrated to dryness, which was diluted with H2O (50 mL), extracted with ethyl acetate (200 mL×3), The organic phase was washed with saturated aqueous NaHCO3 150 mL, dried over Na2SO4, After concentration, the crude product was purified by silica gel chromatography eluted with PE:EtOAc=10:1-4:1 to give afford title product (8.5 g, 73% yield) as yellow oil. LCMS (m/z) ES+=233 (M+1).
Reaction SMILES: [CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([CH3:15])([CH3:14])[CH2:8][CH2:9][C:10]2=O)=[CH:5][C:4]=1[CH3:16].[CH:17]([Mg]Cl)([CH3:19])[CH3:18]>>[CH:17]([C:10]1[C:11]2[C:6](=[CH:5][C:4]([CH3:16])=[C:3]([O:2][CH3:1])[CH:12]=2)[C:7]([CH3:15])([CH3:14])[CH2:8][CH:9]=1)([CH3:19])[CH3:18]
Reactant: COc1cc2c(cc1C)C(C)(C)CCC2=O
Reactant: CC(C)[Mg]Cl
Product: COc1cc2c(cc1C)C(C)(C)CC=C2C(C)C
Yield: 97.9 %

Procedure:
Following General Procedure A, 7-methoxy4,4,6-trimethyl-3,4-dihydro-2H-naphthalen-1-one (Compound 6, 1.0 g, 4.6 mmol) was reacted with a solution of 2 M isopropylmagnesium chloride (12 mL, 22.9 mmol) to give 1.1 g (100%) of the title product as a yellow oil.
Reaction SMILES: Cl[C:2]1[C:11]([O:12][CH3:13])=[N:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([O:14][CH3:15])[CH:8]=2)[N:3]=1.[CH3:16][O:17][C:18]1[CH:25]=[C:24]([O:26][CH3:27])[CH:23]=[CH:22][C:19]=1[CH2:20][NH2:21].O>CS(C)=O>[CH3:13][O:12][C:11]1[C:2]([NH:21][CH2:20][C:19]2[CH:22]=[CH:23][C:24]([O:26][CH3:27])=[CH:25][C:18]=2[O:17][CH3:16])=[N:3][C:4]2[C:9]([N:10]=1)=[CH:8][C:7]([O:14][CH3:15])=[CH:6][CH:5]=2
Reactant: COc1ccc(CN)c(OC)c1
Reactant: COc1ccc2nc(Cl)c(OC)nc2c1
Solvent: O
Solvent: CS(C)=O
Product: COc1ccc(CNc2nc3ccc(OC)cc3nc2OC)c(OC)c1
Temperature: 60 °C
Reaction time: 118 h
Yield: 76.7 %

Procedure:
To 2-chloro-3,6-dimethoxyquinoxaline (3.87 g, 17.2 mmol) dissolved in dimethyl-sulfoxide (70 ml), 2,4-dimethoxybenzylamine (6.07 g, 36.3 mmol) was added at room temperature. The mixture was stirred at 60° C. for 118 hours and then water was added thereto. The product was extracted with ethyl acetate and the organic layer was washed with water and dried over MgSO4. After concentration under the reduced pressure, the crude product was purified by SiO2 column chromatography. Extraction of the residue with a n-hexane:ethyl acetate (6:1) mixture and concentration gave 4.69 g of the titled compound (yield, 77%).
Reaction SMILES: [Cl:1][C:2]1[C:3]([NH:9][NH2:10])=[N:4][CH:5]=[CH:6][C:7]=1[I:8].CCN(CC)CC.[CH:18]1([CH2:21][C:22](Cl)=[O:23])[CH2:20][CH2:19]1.C([O-])(O)=O.[Na+]>C(Cl)Cl>[Cl:1][C:2]1[C:3]([NH:9][NH:10][C:22](=[O:23])[CH2:21][CH:18]2[CH2:20][CH2:19]2)=[N:4][CH:5]=[CH:6][C:7]=1[I:8]
Reactant: O=C(Cl)CC1CC1
Reactant: NNc1nccc(I)c1Cl
Agent: O=C([O-])O
Agent: [Na+]
Solvent: ClCCl
Solvent: CCN(CC)CC
Product: O=C(CC1CC1)NNc1nccc(I)c1Cl
Temperature: 25 °C
Reaction time: 16 h
Yield: 98.7 %

Procedure:
To a solution of D2 (0.73 g, 2.709 mmol) in dry DCM (8 ml), cooled at 0° C., were added Et3N (0.562 ml, 4.064 mmol) and cyclopropyl-acetyl chloride (0.385 g, 3.251 mmol). The resulting reaction mixture was stirred at room temperature for 16 h. To this mixture was then added NaHCO3 (aqueous sat. solution). The resulting solution was then extracted with DCM. The organic layer was separated, dried (MgSO4) and concentrated in vacuo to yield intermediate compound D3 (0.94 g, 99%).
Reaction SMILES: [C:1]([C:5]1[N:10]=[CH:9][C:8]([C:11]2[N:12]([C:32](Cl)=[O:33])[C@@:13]([C:25]3[CH:30]=[CH:29][C:28]([Cl:31])=[CH:27][CH:26]=3)([CH3:24])[C@@:14]([C:17]3[CH:22]=[CH:21][C:20]([Cl:23])=[CH:19][CH:18]=3)([CH3:16])[N:15]=2)=[C:7]([O:35][CH2:36][CH3:37])[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[N:38]1([C:44]([CH:46]2[CH2:50][CH2:49][CH2:48][O:47]2)=[O:45])[CH2:43][CH2:42][NH:41][CH2:40][CH2:39]1>>[C:1]([C:5]1[N:10]=[CH:9][C:8]([C:11]2[N:12]([C:32]([N:41]3[CH2:42][CH2:43][N:38]([C:44]([CH:46]4[CH2:50][CH2:49][CH2:48][O:47]4)=[O:45])[CH2:39][CH2:40]3)=[O:33])[C@@:13]([C:25]3[CH:26]=[CH:27][C:28]([Cl:31])=[CH:29][CH:30]=3)([CH3:24])[C@@:14]([C:17]3[CH:18]=[CH:19][C:20]([Cl:23])=[CH:21][CH:22]=3)([CH3:16])[N:15]=2)=[C:7]([O:35][CH2:36][CH3:37])[CH:6]=1)([CH3:4])([CH3:2])[CH3:3]
Reactant: O=C(C1CCCO1)N1CCNCC1
Reactant: CCOc1cc(C(C)(C)C)ncc1C1=N[C@@](C)(c2ccc(Cl)cc2)[C@@](C)(c2ccc(Cl)cc2)N1C(=O)Cl
Product: CCOc1cc(C(C)(C)C)ncc1C1=N[C@@](C)(c2ccc(Cl)cc2)[C@@](C)(c2ccc(Cl)cc2)N1C(=O)N1CCN(C(=O)C2CCCO2)CC1

Procedure:
In a manner analogous to the method described in examples 8, (4S,5R)-2-(6-tert-butyl-4-ethoxy-pyridin-3-yl)-4,5-bis-(4-chloro-phenyl)-4,5-dimethyl-4,5-dihydro-imidazole-1-carbonyl chloride (example 51) was coupled with piperazin-1-yl-(tetrahydro-furan-2-yl)-methanone (Alfa) to give the title compound as a mixture of diastereomers. HR-MS (ES, m/z) calculated for C38H46Cl2N5O4 [(M+H)+] 706.2922, observed 706.2918.
Reaction SMILES: [NH2:1][C:2]1[N:7]=[CH:6][C:5]([C:8]#[N:9])=[CH:4][N:3]=1.Cl.[NH2:11][OH:12].C(=O)([O-])[O-].[K+].[K+]>C(O)C>[NH2:1][C:2]1[N:7]=[CH:6][C:5]([C:8]([NH:11][OH:12])=[NH:9])=[CH:4][N:3]=1
Reactant: N#Cc1cnc(N)nc1
Reactant: NO
Agent: Cl
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: CCO
Product: N=C(NO)c1cnc(N)nc1
Yield: 72.1 %

Procedure:
A stirred mixture of commercially available 2-amino-5-cyano-pyrimidine [CAS-No. 1753-48-6] (1.39 g, 11.6 mmol), hydroxylamine hydrochloride (1.61 g, 23.2 mol) and potassium carbonate (4.8 g, 34.7 mol) in ethanol (57 mL) was heated under reflux conditions for 3 h. The reaction mixture was evaporated and purified by column chromatography on silica gel (dichloromethane/MeOH 9:1) to yield the title compound (1.28 g, 72%) as an off-white solid. MS (EI) 153.1 [(M)+]; mp 218° C.
Reaction SMILES: C([O:3][C:4](=[O:9])[CH2:5][C:6](=O)[CH3:7])C.C([O:14][C:15](=O)[C:16](=[N:20]O)[C:17](=O)[CH3:18])(C)(C)C.O>C(O)(=O)C.[Zn]>[CH:15]([C:16]1[NH:20][C:6]([CH3:7])=[C:5]([C:4]([OH:3])=[O:9])[C:17]=1[CH3:18])=[O:14]
Reactant: CC(=O)C(=NO)C(=O)OC(C)(C)C
Reactant: CCOC(=O)CC(C)=O
Agent: [Zn]
Solvent: O
Solvent: CC(=O)O
Product: Cc1[nH]c(C=O)c(C)c1C(=O)O
Temperature: 60 °C

Procedure:
Ethyl-3-oxobutyrate (130 g, 1 mol) was dissolved in 400 mL of acetic acid in a 2 L 3-neck round bottom flask equipped with a thermometer, an addition funnel, mechanical stirring and placed in an oil bath. Zinc dust (50 g, 0.76 mol) was added and the mixture heated to 60° C. with stirring. The crude t-butyl-2-hydroximino-3-oxobutyrate solution prepared above was cautiously added keeping the temperature at about 65° C. by slowing the addition and cooling the flask. More zinc dust (4×50 g, 3.06 mol) was added in portions during the addition with the last portion added after all the t-butyl ester had been added. The temperature of the mixture reached a maximum of 80° C. At the end of the additions the temperature was 64° C. The temperature was increased by heating to 70-75° C. for one hour and then poured into 5 L of water. The gray floating precipitate was collected by vacuum filtration and washed with 2 L of water to give 354 g of wet crude product. The crude product was dissolved in 1 L of hot methanol and hot filtered to remove zinc. The filtrate was cooled to give a precipitate that was collected by vacuum filtration to give 118 g of product. The filtrate was put in the refrigerator overnight to give a total of 173.2 g of
Reaction SMILES: [O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[CH:6](O)[C:7]([OH:9])=[O:8].C[C:12](C)(C)[C:13]([O-])([O-:15])[O-:14].C(O)(=O)CCCCC>C1C2C(CCCC2)CCC1>[C:13]([CH2:12][C:3]1[CH:4]=[CH:5][O:1][C:2]=1[CH2:6][C:7]([OH:9])=[O:8])([OH:15])=[O:14]
Reactant: O=C(O)C(O)c1ccco1
Reactant: CC(C)(C)C([O-])([O-])[O-]
Solvent: C1CCC2CCCCC2C1
Solvent: CCCCCC(=O)O
Product: O=C(O)Cc1ccoc1CC(=O)O
Temperature: 180 °C
Reaction time: 12 h
Yield: 54 %

Procedure:
A solution of the product from step b.) (10.9 g, 64 mmol) in decalin (193 ml) was treated with trimethylorthoacetate (48.2 ml, 384 mmol) and hexanoic acid (2.0 ml). Next, the reaction mixture was fitted with a Vigreaux column and heated to 180° C. for 18 hours. Additional hexanoic acid (3×1.5 ml) aliquots of hexanoic acid were added every 2 hours for the first 6 hours of reaction time. Next, the reaction was cooled to 22° C. and extracted with MeOH providing 27 g of a crude mixture of the diester and decalin. This mixture was dissolved in MeOH (250 ml), cooled to 0° C., and treated with 2 M NaOH (150 ml). After 12 hours, the solvent was evaporated and the residue was taken up in 2 N NaOH (100 ml) and washed with ether (2×150 ml). The basic layer was acidified with 4 M HCl to pH 1 and back extracted with EtOAc (4×100 ml). The organic layer was washed with brine, dried (MgSO4) and concentrated providing 6.4 g (54%) of the above subtitle compound.
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[C:4]([C:10](=[NH:13])[NH:11][OH:12])[CH:5]=[C:6]([Cl:9])[C:7]=1[OH:8].[C:14](Cl)(=O)[CH2:15][CH3:16]>N1C=CC=CC=1>[Cl:1][C:2]1[CH:3]=[C:4]([C:10]2[N:13]=[C:14]([CH2:15][CH3:16])[O:12][N:11]=2)[CH:5]=[C:6]([Cl:9])[C:7]=1[OH:8]
Reactant: N=C(NO)c1cc(Cl)c(O)c(Cl)c1
Reactant: CCC(=O)Cl
Solvent: c1ccncc1
Product: CCc1nc(-c2cc(Cl)c(O)c(Cl)c2)no1
Reaction time: 4 h
Yield: 25.6 %

Procedure:
A mixture of 14.1 parts of 3,5-dichloro-N,4-dihydroxybenzenecarboximidamide, 6.5 parts of propanoylchloride and 98 parts of pyridine was stirred for 4 hours at reflux temperature. The reaction mixture was concentrated and the residue was partitioned between water and dichloromethane. The organic layer was separated and washed successively with water (2×) and NaCl (dil.). The combined aqueous layers were washed with dichloromethane and then filtered over diatomaceous earth. After acidifying with acetic acid, the precipitate was filtered off and taken up in dichloromethane. This solution was dried, filtered and evaporated. The residue was crystallized from a mixture of ethanol and water. The product was filtered off and dried in vacuo at 50° C., yielding 4.25 parts (25.6%) of 2,6-dichloro-4-(5-ethyl-1,2,4-oxadiazol-3-yl)phenol; mp. 125.7° C. (interm. 11).
Reaction SMILES: [O:1]=[C:2]1[N:6]([CH2:7][C:8]([OH:10])=O)[C:5]2[CH:11]=[CH:12][CH:13]=[CH:14][C:4]=2[N:3]1[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][N:16]=1.[CH2:21]([N:23](CC)CC)C.ClC(OCC(C)C)=O.[N+](=C)=[N-]>C1COCC1.CCOCC>[NH:23]=[CH:21][C:8](=[O:10])[CH2:7][N:6]1[C:5]2[CH:11]=[CH:12][CH:13]=[CH:14][C:4]=2[N:3]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][N:16]=2)[C:2]1=[O:1]
Reactant: O=C(O)Cn1c(=O)n(-c2ccccn2)c2ccccc21
Reactant: CCN(CC)CC
Agent: C=[N+]=[N-]
Agent: CC(C)COC(=O)Cl
Solvent: CCOCC
Solvent: C1CCOC1
Product: N=CC(=O)Cn1c(=O)n(-c2ccccn2)c2ccccc21
Temperature: -10 °C
Reaction time: 3 h

Procedure:
To a stirred solution of (2-oxo-3-pyridin-2-yl-2,3-dihydro-1H-benzimidazol-1-yl)acetic acid (144 mg, 0.535 mmol, described in Intermediate 16) in THF (5 mL) at −10° C. was added triethylamine (0.097 mL, 0.695 mmol), followed by isobutyl chloroformate (0.090 mL, 0.695 mmol) and the resulting mixture was stirred at −10° C. for 3 h. A cold solution of diazomethane (ca. 1.0 mmol) in Et2O (3 mL) was added, and stirring was continued for 16 h, allowing the mixture to warm slowly to ambient temperature. The mixture was cooled to −10° C. and a cold solution of diazomethane (ca. 1.5 mmol) in Et2O (5 mL) was added, and the resulting mixture was allowed to warm to ambient temperature and stirred for 3 h. The solvent was removed in vacuo and the residue was partitioned between Et2O (20 mL) and saturated aqueous NaHCO3 (10 mL). The aqueous layer was extracted further with Et2O (2×10 mL) and the combined organic layers were dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was triturated with MeOH to give a pale solid. This solid was further purified by silica gel chromatography, eluting with a gradient of hexane:EtOAc—100:0 to 50:50, to give the title compound. MS: m/z=266 (M−N).
Reaction SMILES: [CH3:1][O:2][C:3](=[O:17])[C:4]1[CH:15]=[C:14](Br)[CH:13]=[C:6]([C:7]([NH:9][CH2:10][CH2:11][CH3:12])=[O:8])[CH:5]=1.[C:18]1(B(O)O)[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.C([O-])([O-])=O.[Na+].[Na+].C(O)C>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.C1(C)C=CC=CC=1>[CH3:1][O:2][C:3]([C:4]1[CH:15]=[C:14]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[CH:13]=[C:6]([C:7](=[O:8])[NH:9][CH2:10][CH2:11][CH3:12])[CH:5]=1)=[O:17]
Reactant: CCCNC(=O)c1cc(Br)cc(C(=O)OC)c1
Reactant: OB(O)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: [Na+]
Solvent: CCO
Solvent: Cc1ccccc1
Product: CCCNC(=O)c1cc(C(=O)OC)cc(-c2ccccc2)c1

Procedure:
Using Preparation Method 2, 68C (247 mg, 0.82 mmol) was reacted with phenyl boronic acid (109 mg, 0.9 mmol) in the presence of 5 mol % Pd(PPh3)4, 0.82 mL of 2N Na2CO3, 0.43 mL of Ethanol and 1.8 mL of toluene. The resulting reaction mixture was purified using SiO2 with CH2Cl2/AcOEt 98:2 to 90:10 to give a greenish oil (284 g, quant.). NMR 1H (ppm, CDCl3): 8.37 (t, J4=1.64 Hz, 1H), 8.27 (d. t., J3=6.03 Hz, J4=1.75 Hz, 1H), 7.63 (d, J3=6.97 Hz, 1H), 7.49-7.36 (m, 5H), 6.27 (br. s., 1H), 3.49-3.42 (m, 2H), 1.64 (sext., J3=7.25 Hz, 2H), 1.00 (t., J3=7.37 Hz, 3H).
Reaction SMILES: F[C:2]1[C:7]([F:8])=[CH:6][C:5]([C:9]2[CH:10]=[N:11][N:12]([CH2:14][CH2:15][O:16][CH:17]3[CH2:22][CH2:21][CH2:20][CH2:19][O:18]3)[CH:13]=2)=[CH:4][N:3]=1.[NH2:23][NH2:24]>CC(O)C.O>[F:8][C:7]1[C:2]([NH:23][NH2:24])=[N:3][CH:4]=[C:5]([C:9]2[CH:10]=[N:11][N:12]([CH2:14][CH2:15][O:16][CH:17]3[CH2:22][CH2:21][CH2:20][CH2:19][O:18]3)[CH:13]=2)[CH:6]=1
Reactant: NN
Reactant: Fc1cc(-c2cnn(CCOC3CCCCO3)c2)cnc1F
Solvent: O
Solvent: CC(C)O
Product: NNc1ncc(-c2cnn(CCOC3CCCCO3)c2)cc1F
Temperature: 60 °C
Reaction time: 2 h
Yield: 72.1 %

Procedure:
To a solution of 2,3-difluoro-5-(1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)-1H-pyrazol-4-yl)pyridine (3.0 g, 9.5 mmol) in IPA (47.7 mL, 0.2 M) at room temperature was added hydrazine (3.6 mL, 114.4 mmol). The reaction mixture was stirred at 60° C. for 2 h, at which point the reaction was cooled to room temperature and concentrated in vacuo. The concentrated material was suspended in saturated NaHCO3 solution and filtered to obtain product as a white, fluffy solid. The material was re-suspended in water (30 mL), filtered, and dried under high vacuum to obtain 1-(3-fluoro-5-(1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)-1H-pyrazol-4-yl)pyridin-2-yl)hydrazine (2.2 g, 72% yield) as an orange solid. MS m/z=322.2 [M+1]+. Calc'd for C15H20FN5O2: 321.4.