Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: Br[CH2:2][C:3]([O:5][CH2:6][CH3:7])=[O:4].[N-:8]=[N+:9]=[N-:10].[Na+]>C(O)C.O>[N:8]([CH2:2][C:3]([O:5][CH2:6][CH3:7])=[O:4])=[N+:9]=[N-:10]
Reactant: [N-]=[N+]=[N-]
Reactant: CCOC(=O)CBr
Agent: [Na+]
Solvent: O
Solvent: CCO
Product: CCOC(=O)CN=[N+]=[N-]
Yield: 80.1 %

Procedure:
To a solution of ethyl bromoacetate (42 g) in ethanol (120 mL) was added a solution of NaN3 (25 g) in water (60 ml). The mixture was stirred at reflux for 4 hours. The mixture was concentrated under vacuum and the residue was partitioned between ether (300 mL) and water (200 mL). The aqueous layer was further extracted with ether. The combined extracts were washed with water (×3), brine and dried over Na2SO4. After filtration, careful concentration of solvent gave ethyl azidoacetate (26 g) which was dissolved in ethanol (100 ml) and 2-bromobenzaldehyde (12.5 g) was added to the solution which was then added dropwise to a cooled (−15° C.) solution of sodium ethoxide (prepared from Na (5.2 g) and ethanol (60 ml)). The mixture was stirred at 0° C. for 4 hours before poured into a mixture of ice and saturated aqueous NH4Cl solution. The mixture was filtered and the precipitate was washed with water and dissolved in ethyl acetate and dried over Na2SO4. Concentration of solvent gave crude intermediate, which was dissolved in xylene (100 ml) and added dropwise to refluxing xylene under nitrogen. After the addition, the mixture was stirred at reflux overnight. Concentration of the mixture under vacuum gave the crude product, which was purified by silica gel chromatography (2% ethyl acetate in hexane).
Reaction SMILES: [C-:1]#[N:2].[Na+].[C:4]([C:8]1[CH:15]=[CH:14][C:11]([CH2:12]Br)=[CH:10][CH:9]=1)([CH3:7])([CH3:6])[CH3:5]>C(O)C.O.O>[C:4]([C:8]1[CH:15]=[CH:14][C:11]([CH2:12][C:1]#[N:2])=[CH:10][CH:9]=1)([CH3:7])([CH3:6])[CH3:5]
Reactant: [C-]#N
Reactant: CC(C)(C)c1ccc(CBr)cc1
Agent: [Na+]
Solvent: O
Solvent: CCO
Product: CC(C)(C)c1ccc(CC#N)cc1
Temperature: 25 °C
Reaction time: 4 h
Yield: 88.4 %

Procedure:
Sodium cyanide (1.07 g, 22 mmol) was added to a stirred solution of 4-t-butylbenzylbromide (5 g, 22 mmol) in a mixture of EtOH-H2O (6:1) (70 mL). The reaction mixture was allowed to stir under reflux conditions for 4 hours. After cooling the mixture to room temperature, the solvent was evaporated under reduced pressure to afford a yellow oil. The oil was suspended in water (20 mL) and extracted with ether (3×25 mL). The solvent was removed under reduced pressure to give a yellow oil which was purified by distillation (Kugelrohr, bp 120-125° C., 0.2 mm Hg) to afford 3.37 g (89%) of the title compound as a colorless oil.
Reaction SMILES: [CH:1]1[C:11]2[C:10]3[CH:12]=[CH:13][CH:14]=[CH:15][C:9]=3[CH2:8][C:7](=[O:16])[NH:6][C:5]=2[N:4]=[CH:3][CH:2]=1.C(=O)([O-])[O-].[Cs+].[Cs+].Br[CH2:24][CH2:25][O:26][Si:27]([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28]>C(#N)C>[Si:27]([O:26][CH2:25][CH2:24][N:6]1[C:5]2[N:4]=[CH:3][CH:2]=[CH:1][C:11]=2[C:10]2[CH:12]=[CH:13][CH:14]=[CH:15][C:9]=2[CH2:8][C:7]1=[O:16])([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28]
Reactant: CC(C)(C)[Si](C)(C)OCCBr
Reactant: O=C1Cc2ccccc2-c2cccnc2N1
Agent: O=C([O-])[O-]
Agent: [Cs+]
Solvent: CC#N
Product: CC(C)(C)[Si](C)(C)OCCN1C(=O)Cc2ccccc2-c2cccnc21
Temperature: 25 °C
Reaction time: 0.75 h

Procedure:
Add 5,7-dihydropyrido[2,3-d][3]benzazepin-6-one (33.8 g, 0.16 mol) in acetonitrile (340.0 mL) and stir at 20-30° C. for 0.5-1 hour. Add cesium carbonate (104.6 g, 0.32 mol) and (2-bromoethoxy)-tert-butyldimethylsilane (42.2 g, 0.18 mol) and heat the reaction mixture to 70-80° C. for 18-20 hours. Cool the reaction mixture to 20-25° C. and filter through diatomaceous earth (50.6 g). Wash the filter cake with acetonitrile (2×50.6 mL) and concentrate the filtrate under reduced pressure to arrive at a total volume of approximately 67.5 mL. Add toluene (152 mL), active carbon (2.53 g) and heat the mixture to 60-70° C. for 1-2 hours. Cool the mixture to 25-35° C. and filter the reaction mixture over diatomaceous earth (50.6 g). Rinse the filter cake with toluene (17.0 mL) and concentrate under reduced pressure to obtain the title compound as a light brown oil that crystallizes on standing (56.8 g, 92.2%).
Reaction SMILES: [C:1]1([CH:7]([O:14][C:15](=[O:50])/[C:16](/[N:21]2[CH:24]([S:25]S(C3C=CC([N+]([O-])=O)=CC=3)(=O)=O)[CH:23]([NH:38][C:39](=[O:48])[CH2:40][O:41][C:42]3[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=3)[C:22]2=[O:49])=[C:17](\[O:19][CH3:20])/[CH3:18])[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(O)(=O)/C=C\C.N12CCCCC1C=NCCC2>O1CCCC1.C1C=CC=CC=1>[C:8]1([CH:7]([O:14][C:15]([CH:16]2[N:21]3[C:22](=[O:49])[C@@H:23]([NH:38][C:39](=[O:48])[CH2:40][O:41][C:42]4[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=4)[C@H:24]3[S:25][CH:18]=[C:17]2[O:19][CH3:20])=[O:50])[C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1
Reactant: CO/C(C)=C(\C(=O)OC(c1ccccc1)c1ccccc1)N1C(=O)C(NC(=O)COc2ccccc2)C1SS(=O)(=O)c1ccc([N+](=O)[O-])cc1
Agent: C/C=C\C(=O)O
Agent: C1=NCCCN2CCCCC12
Solvent: C1CCOC1
Solvent: c1ccccc1
Product: COC1=CS[C@@H]2[C@H](NC(=O)COc3ccccc3)C(=O)N2C1C(=O)OC(c1ccccc1)c1ccccc1

Procedure:
A solution of 367 mg (0.5 mM) of a mixture consisting of 2-[4-(p-nitrobenzenesulphonylthio)-3-phenoxyacetamido-2-oxoazetidin-1-yl]-3-methoxy-crotonic acid diphenylmethyl ester and the corresponding isocrotonic acid dihenylmethyl ester, and 152 mg (1.0 mM) of 1,5-diazabicyclo[5.4.0]undec- 5-ene in 10 ml of dry tetrahydrofurane is stirred for 40 minutes at room temperature. The reaction mixture is diluted with benzene, washed successively with dilute hydrochloric acid, water and dilute aqueous sodium bicarbonate solution, dried over sodium sulphate and freed from the solvent in vacuo. The residue is chromatographed on acid-washed silica gel, using toluene/ethyl acetate, 7:1, as the running agent, whereby pure 7β-phenoxyacetamido-3-methoxy-ceph-2-em-4-carboxylic acid diphenylmethyl ester is obtained. Subsequent elution with toluene/ethyl acetate, 2:1, results in the isolation of a mixture which in addition to 7β-phenoxyacetamido-3-methoxy-ceph-2-em-4-carboxylic acid diphenylmethyl ester also contains 7βphenoxyacetamido-3-methoxy-ceph-3-em-4-carboxylic acid diphenylmethyl ester.
Reaction SMILES: [CH2:1]([O:3][CH:4]([O:7][CH2:8][CH3:9])[C:5]#[N:6])[CH3:2].[CH3:10][O-:11].[Na+]>CO>[CH2:1]([O:3][CH:4]([O:7][CH2:8][CH3:9])[C:5](=[NH:6])[O:11][CH3:10])[CH3:2]
Reactant: C[O-]
Reactant: CCOC(C#N)OCC
Agent: [Na+]
Solvent: CO
Product: CCOC(OCC)C(=N)OC
Reaction time: 8 h
Yield: 98.6 %

Procedure:
A solution of diethoxyacetonitrile (75 g, 0.579 mol) in methanol (210 mL) was added at room temperature to a solution of sodium methoxide (28.3 g, 0.522 mol) in methanol (450 mL). The mixture was stirred overnight, and then the methanol was carefully evaporated (volatile product). The residue was diluted with dichloromethane (200 mL) and water (300 mL). The organic layer was separated, and the aqueous one was extracted with dichloromethane (2×150 mL). The combined organic layer was dried over Na2SO4 and evaporated to give 83 g of crude methyl 2,2-diethoxyethanimidoate (˜90% yield).
Reaction SMILES: [Br:1][C:2]1[NH:3][C:4]2[CH:10]=[C:9]([Cl:11])[C:8]([Cl:12])=[CH:7][C:5]=2[N:6]=1.ClC1C(Cl)=CC2=NC(=O)N=C2C=1.C(O[C@@H:29]1[O:41][C@H:40]([CH2:42][O:43][C:44](=[O:46])[CH3:45])[C@@H:35]([O:36][C:37](=[O:39])[CH3:38])[C@H:30]1[O:31][C:32](=[O:34])[CH3:33])(=O)C.[Si](OS(C(F)(F)F)(=O)=O)(C)(C)C>CC#N.CCOC(C)=O>[Br:1][C:2]1[N:3]([C@@H:29]2[O:41][C@H:40]([CH2:42][O:43][C:44](=[O:46])[CH3:45])[C@@H:35]([O:36][C:37](=[O:39])[CH3:38])[C@H:30]2[O:31][C:32](=[O:34])[CH3:33])[C:4]2[CH:10]=[C:9]([Cl:11])[C:8]([Cl:12])=[CH:7][C:5]=2[N:6]=1
Reactant: Clc1cc2nc(Br)[nH]c2cc1Cl
Reactant: CC(=O)OC[C@H]1O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H]1OC(C)=O
Agent: C[Si](C)(C)OS(=O)(=O)C(F)(F)F
Agent: O=C1N=c2cc(Cl)c(Cl)cc2=N1
Solvent: CC#N
Solvent: CCOC(C)=O
Product: CC(=O)OC[C@H]1O[C@@H](n2c(Br)nc3cc(Cl)c(Cl)cc32)[C@H](OC(C)=O)[C@@H]1OC(C)=O
Temperature: 25 °C
Reaction time: 0.25 h

Procedure:
To a suspension of (7) (47.867 g, 180 mmol) in 540 mL of dry MeCN, was added 45 mL (180 mmol) of BSA. The reaction mixture was stirred at room temperature for 15 min to give a clear solution. A small amount of solid impurity remained unsilylated, believed to be 5,6-dichlorobenzimidazol-2-one from the starting material(7). 1,2,3,5-Tetra-O-acetyl-β-D-ribofuranose (60.14 g, 189 mmole) was added to this solution and then TMSOTf (38.267 mL 198 mmol) was added dropwise over 20 min. After the addition had been completed, stirring was continued at room temperature for 30 min. The reaction mixture was diluted with 2 L of EtOAc. The EtOAc solution was washed with 1:1 saturated aquenous NaHCO3 /saturated aquenous NaCl (1.5 L×2), dried (Na2SO4, 100 g), decolorized (activated charcoal, 6 g), and filtered through Celite. The filtrate was evaporated and the residue was recrystallized from MeOH to give 82.21 g (4 crops, 87%) of 52a as white needles. MP: 140°-144° C. This product was pure by 1H NMR.
Reaction SMILES: [F:1][C:2]1[C:3]([C:9]([OH:11])=O)=[N:4][CH:5]=[C:6]([Cl:8])[CH:7]=1.S(Cl)([Cl:14])=O.[OH-].[Na+]>>[F:1][C:2]1[C:3]([C:9]([Cl:14])=[O:11])=[N:4][CH:5]=[C:6]([Cl:8])[CH:7]=1
Reactant: O=S(Cl)Cl
Reactant: O=C(O)c1ncc(Cl)cc1F
Agent: [Na+]
Agent: [OH-]
Product: O=C(Cl)c1ncc(Cl)cc1F
Temperature: 90 °C
Reaction time: 5 h

Procedure:
71.38 g of 3-fluoro-5-chloro-2-pyridinecarboxylic acid (Example P4) are placed in a round-bottomed flask and heated to 90° C. 59 ml of thionyl chloride are added dropwise from a dropping funnel over a period of 30 minutes, and the gas formed is introduced into sodium hydroxide solution. Stirring is then carried out for 5 hours at 100° C., after which the thionyl chloride is distilled off at normal pressure. After the addition of 50 ml of dry toluene, 20 ml thereof are distilled off. The resulting solution is poured into 200 ml of n-hexane and stirred overnight. After cooling in an ice-bath, the mixture is filtered and the filtration residue is washed twice with n-hexane. 68.7 g of the desired compound are obtained in the form of a brown solid.
Reaction SMILES: [SH:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][OH:9])=[CH:4][CH:3]=1.[NH2:10][C:11]1[N:16]=[C:15]([OH:17])[C:14](Br)=[C:13]([CH3:19])[N:12]=1.C([O-])([O-])=O.[K+].[K+].Cl>C(O)CO.O>[NH2:10][C:11]1[N:16]=[C:15]([OH:17])[C:14]([S:1][C:2]2[CH:7]=[CH:6][C:5]([CH2:8][OH:9])=[CH:4][CH:3]=2)=[C:13]([CH3:19])[N:12]=1
Reactant: Cc1nc(N)nc(O)c1Br
Reactant: OCc1ccc(S)cc1
Agent: Cl
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: OCCO
Solvent: O
Product: Cc1nc(N)nc(O)c1Sc1ccc(CO)cc1
Temperature: 155 °C

Procedure:
A stirred mixture of (4-mercaptophenyl)methanol (6.72 g), 2-amino-5-bromo-6-methylpyrimidin-4-ol (10.76 g) and K2CO3 (7.29 g) in ethylene glycol (120 ml) was heated at 155° C. for 9 h. After cooling the mixture was poured into water (500 ml) and neutralised with conc. HCl. The precipitate was filtered, washed with water then 50% EtOH/ether and dried to give the subtitle compound as a solid, 6.7 g.
Reaction SMILES: [Br:1][C:2]1[CH:9]=[C:6]([CH:7]=[O:8])[C:5]([O:10][CH3:11])=[CH:4][CH:3]=1.[CH2:12](O)[CH2:13][CH2:14][OH:15].B(F)(F)F.CCOCC>C1(C)C=CC=CC=1.CCOCC>[Br:1][C:2]1[CH:9]=[C:6]([CH:7]2[O:15][CH2:14][CH2:13][CH2:12][O:8]2)[C:5]([O:10][CH3:11])=[CH:4][CH:3]=1
Reactant: COc1ccc(Br)cc1C=O
Reactant: OCCCO
Agent: FB(F)F
Solvent: CCOCC
Solvent: Cc1ccccc1
Product: COc1ccc(Br)cc1C1OCCCO1
Yield: 84.3 %

Procedure:
A mixture of 5-bromo-o-anisaldehyde (10.0 g, 46.5 mmol), propane-1,3-diol (3.90 g, 51.2 mmol) and BF3-Et2O(0.15 ml) in toluene (50 ml) was refluxed in a Dean-Stark apparatus for 3 h. The reaction mixture was cooled, diluted with ether. The organic layer was washed successively with sat. NaHCO3 aq., water and brine, dried (MgSO4), and concentrated in vacuo to give crude product. The residue was distilled to give Compound 38 (10.7 g, 84%) as a colorless oil.
Reaction SMILES: [NH2:1][C:2]1[C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[S:4][C:3]=1C(OC)=O.CN1CCNCC1.O>CN1CCCC1=O>[NH2:1][C:2]1[C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[S:4][CH:3]=1
Reactant: COC(=O)c1sc2ccccc2c1N
Agent: CN1CCNCC1
Solvent: O
Solvent: CN1CCCC1=O
Product: Nc1csc2ccccc12
Temperature: 178 °C

Procedure:
To a solution of methyl 3-aminobenzothiophene-2-carboxylate [prepared by the method of J. R. Beck, J. Org. Chem. 1972, 37, 3224] (6.5 g, 31.4 mmol) in N-methylpyrrolidinone (30 ml) was added 1-methylpiperazine and the reaction mixture was heated to 178° C. for 4 h. After cooling the mixture was poured into water and the product extracted with diethyl ether (3×100 ml), the extracts were washed with water (1×100 ml) and brine (1×100 ml), combined and dried (MgSO4). Concentration of the extracts yielded 3-aminobenzothiophene (5.9 g), which was used without purification. To a solution of 3-aminobenzothiophene (5 g, 32 mmol) in N-methylpyrrolidinone (50 ml) was added piperazine (8.7 g, 102 mmol) and the mixture heated to reflux under nitrogen for 14 h. Cooled and poured into water and extracted with dichloromethane (4×100 ml). The extracts were washed with brine (50 ml), combined and dried (MgSO4). On concentration of the extracts a white solid came out of solution which was collected by filtration to yield the title compound (0.78 g, more product left in solution); δH (DMSO-d6 +(TFA), 3.3 (3H, m, 4×piperazinyl CH2), 7.08 (1H, s, 3-H), 7.39 (2H, m, 2×ArH), 7.83 (1H, m, ArH), 7.95 (1H, m, ArH), and 9.30 (1H, br s, NH).
Reaction SMILES: [C:1]([NH2:4])(=[O:3])[CH3:2].[C:5]([N:10]=[C:11]=[O:12])(=[O:9])[C:6]([CH3:8])=[CH2:7]>ClCCCl.N1C=CC=CC=1>[C:5]([NH:10][C:11]([NH:4][C:1](=[O:3])[CH3:2])=[O:12])(=[O:9])[C:6]([CH3:8])=[CH2:7]
Reactant: CC(N)=O
Reactant: C=C(C)C(=O)N=C=O
Solvent: ClCCCl
Solvent: c1ccncc1
Product: C=C(C)C(=O)NC(=O)NC(C)=O
Reaction time: 12 h
Yield: 79.9 %

Procedure:
To a solution of acetamide (0.59 g; 10 mmol) in 1,2-dichloroethane (20 ml), a solution of methacryloyl isocyanate (1.11 g; 10 mmol) in 1,2-dichloroethane (10 ml) was dropwise added. After completion of the addition, pyridine (5 drops) was added to the solution, and then stirring was continued at room temperature for 12 hours. 1,2-Dichloroethane was evaporated under reduced pressure to give 1-methacryloyl-3-acetylurea (1.36 g), which was recrystallized from a mixture of benzene and hexane to give colorless needles. M.P., 92°-94° C.
Reaction SMILES: Cl.[N+:2]([C:5]1[CH:6]=[C:7]([CH:16]=[CH:17][CH:18]=1)[C:8]([CH:10]([CH3:15])[CH2:11][C:12](O)=[O:13])=O)([O-:4])=[O:3].O.[NH2:20][NH2:21]>C(O)C>[CH3:15][CH:10]1[C:8]([C:7]2[CH:16]=[CH:17][CH:18]=[C:5]([N+:2]([O-:4])=[O:3])[CH:6]=2)=[N:21][NH:20][C:12](=[O:13])[CH2:11]1
Reactant: CC(CC(=O)O)C(=O)c1cccc([N+](=O)[O-])c1
Reactant: NN
Agent: Cl
Solvent: O
Solvent: CCO
Product: CC1CC(=O)NN=C1c1cccc([N+](=O)[O-])c1

Procedure:
A 28 g. portion of 3-(m-nitrobenzyoly)butyronitrile [prepared as described in J. Org. Chem., Vol. 38, No. 23, 4044-4048 (1973)] is added to one liter of 6N hydrochloric acid and is stirred at reflux for one hour using a magnetic stirrer and a heating mantle. The reaction mixture is cooled and extracted with methylene chloride. The organic layer is separated and extracted with saturated sodium bicarbonate. The bicarbonate layer is added dropwise to a stirred cold hydrochloric acid solution and the resulting solid is kept cold in ice then is filtered and air dried to afford 27.24 g. of 3-m-nitrobenzoyl butyric acid as a white solid. The entire amount of the preceding compound is mixed with 12.8 ml of 99% hydrazine hydrate in 140 ml. of ethyl alcohol and is stirred at reflux for 3 hours. A solid beings to appear after about half an hour. The reaction mixture is cooled in an ice bath and the resulting solid is filtered and air dried to afford the compound 4,5-dihydro-5-methyl-6-(m-nitrophenyl)-3-(2H)-pyridazinone as white to light yellow crystals.
Reaction SMILES: [CH2:1]([O:3][C:4]1([C:7]2[CH:12]=[CH:11][C:10]([C:13]#[CH:14])=[CH:9][C:8]=2[C:15]([CH3:18])([CH3:17])[CH3:16])[CH2:6][CH2:5]1)[CH3:2].[CH2:19]([O:21][C:22](=[O:30])[C:23]1[CH:28]=[CH:27][C:26](I)=[CH:25][CH:24]=1)[CH3:20]>C(N(CC)CC)C.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH2:1]([O:3][C:4]1([C:7]2[CH:12]=[CH:11][C:10]([C:13]#[C:14][C:26]3[CH:27]=[CH:28][C:23]([C:22]([O:21][CH2:19][CH3:20])=[O:30])=[CH:24][CH:25]=3)=[CH:9][C:8]=2[C:15]([CH3:17])([CH3:16])[CH3:18])[CH2:6][CH2:5]1)[CH3:2]
Reactant: CCOC(=O)c1ccc(I)cc1
Reactant: C#Cc1ccc(C2(OCC)CC2)c(C(C)(C)C)c1
Agent: Cl[Pd](Cl)([P](c1ccccc1)(c1ccccc1)c1ccccc1)[P](c1ccccc1)(c1ccccc1)c1ccccc1
Agent: [Cu]I
Solvent: CCN(CC)CC
Product: CCOC(=O)c1ccc(C#Cc2ccc(C3(OCC)CC3)c(C(C)(C)C)c2)cc1
Temperature: 25 °C
Reaction time: 8 h

Procedure:
Using General Procedure F; 1-(1-ethoxycyclopropyl)-4-ethynyl-2-tert-butylbenzene (Intermediate 112, 70.0 mg, 0.30 mmol) and ethyl-4-iodo benzoate (Reagent A, 85.0 mg, 0.30 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (19.0 mg, 0.01 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)-palladium(II) (70 mg, 0.01 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (1-2% EtOAc-hexanes) afforded 70.0 (73%) of the title compound.
Reaction SMILES: C([O:8][C:9]1[CH:14]=[CH:13][C:12](/[CH:15]=[CH:16]/[C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])=[CH:11][CH:10]=1)C1C=CC=CC=1.C(O)C>[Pd].[C].O1CCCC1>[OH:8][C:9]1[CH:10]=[CH:11][C:12]([CH2:15][CH2:16][C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])=[CH:13][CH:14]=1
Reactant: CC(C)(C)OC(=O)/C=C/c1ccc(OCc2ccccc2)cc1
Agent: [Pd]
Solvent: C1CCOC1
Solvent: CCO
Product: CC(C)(C)OC(=O)CCc1ccc(O)cc1
Reaction time: 2 h
Yield: 78.8 %

Procedure:
A mixture of tert-butyl (2E)-3-[4-(benzyloxy)phenyl]acrylate (13.3 g, 42.8 mmol), 10% Pd carbon (1.3 g), ethanol (100 mL) and tetrahydrofuran (30 mL) was stirred under a hydrogen atmosphere for 2 hrs. The catalyst was filtered off, and the filtrate was concentrated under reduced pressure to give the title compound (7.5 g, yield 79%) as colorless crystals.
Reaction SMILES: [Cl:1][C:2]1[C:7]([N+:8]([O-])=O)=[CH:6][C:5]([NH:11][C:12](=[O:14])[CH3:13])=[C:4]([F:15])[CH:3]=1.[H][H]>C(OCC)(=O)C.[Ir]>[NH2:8][C:7]1[C:2]([Cl:1])=[CH:3][C:4]([F:15])=[C:5]([NH:11][C:12](=[O:14])[CH3:13])[CH:6]=1
Reactant: [H][H]
Reactant: CC(=O)Nc1cc([N+](=O)[O-])c(Cl)cc1F
Agent: [Ir]
Solvent: CCOC(C)=O
Product: CC(=O)Nc1cc(N)c(Cl)cc1F
Yield: 98.1 %

Procedure:
To a supension of the title compound of Step A (116 g, 500 mmol) in 500 mL of ethyl acetate was added 3.63 g of iridium (5%) on charcoal. The hydrogenation was performed at 4 bar of hydrogen pressure in an autoclave for 4.5 h at 60° C. The reaction was then filtered and the solvent removed under reduced pressure. Drying of the crystalline product yielded the title compound of Step B (99.4 g, 98%) melting at 142-143° C. 1H NMR (CDCl3) δ 7.9 (d, 1H), 7.3-7.2 (br s, 1H), 7.1-7.0 (s, 2H), 2.2-2.1 (s, 3H).
Reaction SMILES: [F:1][C:2]1[CH:19]=[C:18]([F:20])[C:17]([F:21])=[C:16]([CH3:22])[C:3]=1[C:4]([C:6](=[CH:12]OCC)[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5].[CH:23]1([NH2:26])[CH2:25][CH2:24]1>C(O)C.CCCCCC>[F:1][C:2]1[CH:19]=[C:18]([F:20])[C:17]([F:21])=[C:16]([CH3:22])[C:3]=1[C:4]([C:6](=[CH:12][NH:26][CH:23]1[CH2:25][CH2:24]1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5]
Reactant: CCOC=C(C(=O)OCC)C(=O)c1c(F)cc(F)c(F)c1C
Reactant: NC1CC1
Solvent: CCO
Solvent: CCCCCC
Product: CCOC(=O)C(=CNC1CC1)C(=O)c1c(F)cc(F)c(F)c1C
Temperature: 5 °C
Reaction time: 2 h
Yield: 84.6 %

Procedure:
To a solution of 8.3 g (26 mmol) of ethyl 2-(2,4,5-trifluoro-6-methylbenzoyl)-3-ethoxyacrylate in 30 ml of absolute ethanol at 5° C. was added 1.64 g (29 mmol) of cyclopropylamine. The reaction mixture was stirred at 5° C. for 90 minutes and at room temperature for two hours. The solution was concentrated to give a brown oil which was dissolved in hexane and reconcentrated to give a tan solid. Recrystallization from hexane gave 7.2 g of colorless crystals, mp 69°-72° C.
Reaction SMILES: F[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12].[CH2:14]([NH2:16])[CH3:15]>CO>[CH2:14]([NH:16][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12])[CH3:15]
Reactant: CCN
Reactant: O=C(O)c1ccc(F)c([N+](=O)[O-])c1
Solvent: CO
Product: CCNc1ccc(C(=O)O)cc1[N+](=O)[O-]
Temperature: 75 °C
Reaction time: 5 h

Procedure:
To a suspension of 1.85 g of 4-fluoro-3-nitrobenzoic acid (10 mmol) in 25 mL of MeOH is added 20 mL of ethylamine (2.0M in THF). The resulting yellow solution is stirred at 75° C. for 5 h then at RT for 48 h. The solvent is removed under reduced pressure, then water is added to the residue. The resulting orange suspension is acidified with 2N aqueous HCl and the yellow precipitate is collected by filtration, washed with water and dried in vacuo to give 4-ethylamino-3-nitro-benzoic acid: mp=233-236° C.; 1H-NMR (DMSO-d6) δ 12.83 (s, 1H), 8.61 (d, J=1.84, 1H), 8.49 (m, 1H), 7.97 (dd, 1H), 7.12 (d, J=9.2, 1H), 3.46 (m, 2H), 1.23 (t, 3H); [M−1]−=209.
Reaction SMILES: Cl.[C:2]([NH:6][NH2:7])([CH3:5])([CH3:4])[CH3:3].CN([CH:11]=[C:12]([C:18](=O)[CH3:19])[C:13]([O:15][CH2:16][CH3:17])=[O:14])C>C(O)C.CCOCC>[C:2]([N:6]1[C:18]([CH3:19])=[C:12]([C:13]([O:15][CH2:16][CH3:17])=[O:14])[CH:11]=[N:7]1)([CH3:5])([CH3:4])[CH3:3]
Reactant: CCOC(=O)C(=CN(C)C)C(C)=O
Reactant: CC(C)(C)NN
Agent: Cl
Solvent: CCOCC
Solvent: CCO
Product: CCOC(=O)c1cnn(C(C)(C)C)c1C
Temperature: 25 °C
Reaction time: 2 h
Yield: 65.2 %

Procedure:
In ethanol (10 mL) was placed the tert-butylhydrazine hydrochloride (1.35 g, 10.8 mmol) and ethyl 2-((dimethylamino)methylene)-3-oxobutanoate (2.00 g, 10.8 mmol). The mixture warmed to reflux and stirred for 2 hrs, then cooled to RT and stirred overnight. The mixture was evaporated at reduced pressure to give an oil which was dissolved in ether (25 mL) and washed successively with water (25 mL), saturated sodium bicarbonate (25 mL) and brine (25 mL), dried (Na2SO4), evaporated at reduced pressure and purified by chromatography (S1-25 column, ethyl acetate/hexanes) to give ethyl 1-tert-butyl-5-methyl-1H-pyrazole-4-carboxylate (1.48 g, 65% yield) as an oil. MS (ESI) m/z: 211.0 (M+H+).
Reaction SMILES: [NH:1]1[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.[Cl:7][C:8]1[N:16]=[C:15]2[C:11]([NH:12][CH:13]=[N:14]2)=[C:10](Cl)[N:9]=1>C(O)C>[Cl:7][C:8]1[N:16]=[C:15]2[C:11]([N:12]=[CH:13][NH:14]2)=[C:10]([N:1]2[CH2:6][CH2:5][O:4][CH2:3][CH2:2]2)[N:9]=1
Reactant: C1COCCN1
Reactant: Clc1nc(Cl)c2[nH]cnc2n1
Solvent: CCO
Product: Clc1nc(N2CCOCC2)c2nc[nH]c2n1
Yield: 98.2 %

Procedure:
Morpholine (46.9 ml, 538.2 mmol) was added to an ethanol solution (1.2 l) of 2,6-dichloropurine (50.9 g, 269.1 mmol) at room temperature and the resulting mixture was stirred and heated to reflux for 2.5 hours. The reaction mixture was left standing to cool and then concentrated until the solvent was reduced nearly by half in volume and the solid was collected by filtration. The solid was washed with ethanol and dried at 50° C. under reduced pressure to give a mixture (63.3 g, 95%) of the title compound and morpholine hydrochloride (approx. 13:1) as a white solid.
Reaction SMILES: [N+:1]([C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]2)=[CH:6][CH:5]=1)([O-])=O.[H][H]>C(O)C.[Pd]>[NH2:1][C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]2)=[CH:6][CH:5]=1
Reactant: [H][H]
Reactant: CC(C)(C)OC(=O)N1CCN(c2ccc([N+](=O)[O-])cc2)CC1
Agent: [Pd]
Solvent: CCO
Product: CC(C)(C)OC(=O)N1CCN(c2ccc(N)cc2)CC1
Yield: 99.8 %

Procedure:
4-(4-Nitrophenyl)-1-piperazinecarboxylic acid, 1,1-dimethylethyl ester (20 g, 65 mmol) was dissolved in anhydrous ethanol (250 mL) and 10% Pd/C (1.8 g) was added. The mixture was stirred for 1.5 h under 10 psi of hydrogen and filtered through a Celite pad. The pad was washed with ethyl acetate (3×100 mL) and the combined solution was evaporated in vacuo to yield 4-(4-aminophenyl)-1-piperazinecarboxylic acid, 1,1-dimethylethyl ester (18 g, 98% yield).