Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [NH:1]1[CH:5]=[CH:4][N:3]=[CH:2]1.ClC(Cl)Cl.Cl[CH2:11][C:12]([C:14]1[CH:19]=[CH:18][C:17]([F:20])=[CH:16][C:15]=1[F:21])=[O:13]>O>[F:21][C:15]1[CH:16]=[C:17]([F:20])[CH:18]=[CH:19][C:14]=1[C:12](=[O:13])[CH2:11][N:1]1[CH:5]=[CH:4][N:3]=[CH:2]1
Reactant: O=C(CCl)c1ccc(F)cc1F
Reactant: c1c[nH]cn1
Solvent: O
Solvent: ClC(Cl)Cl
Product: O=C(Cn1ccnc1)c1ccc(F)cc1F
Reaction time: 0.5 h
Yield: 69 %

Procedure:
To a refluxing and stirred solution of 457.6 parts of 1H-imidazole in 2400 parts of trichloromethane was added dropwise a solution of 320 parts of 2-chloro-1-(2,4-difluorophenyl)ethanone in 1440 parts of trichloromethane. After stirring for 1/2 hour at reflux temperature, the reaction mixture was poured into water. The organic layer was washed with water (2x), dried, filtered and evaporated. The residue was crystallized from 2-propanol, yielding 244 parts (69%) of 1-(2,4-difluorophenyl)-2-(1H-imidazol-1-yl)ethanone; mp. 125° C. (interm. 1).
Reaction SMILES: [Cl:1][C:2]1[CH:27]=[CH:26][C:5]([CH2:6][N:7]2[C:15]3[C:10](=[CH:11][C:12]([CH:16]=[C:17]4[S:21][C:20](SCC)=[N:19][C:18]4=[O:25])=[CH:13][CH:14]=3)[CH:9]=[N:8]2)=[C:4]([C:28]([F:31])([F:30])[F:29])[CH:3]=1.[NH:32]1[CH2:37][CH2:36][O:35][C@H:34]([CH2:38][OH:39])[CH2:33]1>>[Cl:1][C:2]1[CH:27]=[CH:26][C:5]([CH2:6][N:7]2[C:15]3[C:10](=[CH:11][C:12]([CH:16]=[C:17]4[S:21][C:20]([N:32]5[CH2:37][CH2:36][O:35][C@H:34]([CH2:38][OH:39])[CH2:33]5)=[N:19][C:18]4=[O:25])=[CH:13][CH:14]=3)[CH:9]=[N:8]2)=[C:4]([C:28]([F:29])([F:31])[F:30])[CH:3]=1
Reactant: OC[C@@H]1CNCCO1
Reactant: CCSC1=NC(=O)C(=Cc2ccc3c(cnn3Cc3ccc(Cl)cc3C(F)(F)F)c2)S1
Product: O=C1N=C(N2CCO[C@H](CO)C2)SC1=Cc1ccc2c(cnn2Cc2ccc(Cl)cc2C(F)(F)F)c1

Procedure:
5-({1-[4-Chloro-2-(trifluoromethyl)benzyl]-1H-indazol-5-yl}methylidene)-2-[2-(S)-(hydroxymethyl)morpholin-4-yl]-1,3-thiazol-4(5H)-one was prepared from 5-[1-(4-Chloro-2-trifluoromethyl-benzyl)-1H-indazol-5-ylmethylene]-2-ethylsulfanyl-thiazol-4-one and (S)-Morpholin-2-yl-methanol following General Procedure C.
Reaction SMILES: [CH2:1]([N:8]1[CH2:12][CH:11]=[CH:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.S(=O)(=O)(O)[OH:14].O.C1C=C(Cl)C=C(C(OO)=O)C=1>CC(C)=O>[CH2:1]([N:8]1[CH2:12][CH:11]2[O:14][CH:10]2[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
Reactant: O=S(=O)(O)O
Reactant: C1=CCN(Cc2ccccc2)C1
Agent: O=C(OO)c1cccc(Cl)c1
Solvent: O
Solvent: CC(C)=O
Product: c1ccc(CN2CC3OC3C2)cc1
Yield: 97 %

Procedure:
To a solution of 15.9 g (0.1 mol) of 1-benzyl-3-pyrroline, 12.0 g (0.12 mol) of 98% sulfuric acid, 15.0 g of water, and 60.0 g of acetone in a round flask reactor, 31.1 g (0.13 mol) of 70% m-CPBA (m-chloroperbenzoic acid produced by Tokyo Chemical Industry Co., Ltd.) was added with stirring and allowed to react for 10 hours at room temperature without irradiation by lamps. After completion, acetone was evaporated under reduced pressure, neutralized by NaOH (aq), and extracted with toluene and water. After the solvent was evaporated under reduced pressure, 17.0 g of 1-benzyl-3,4-epoxypyrrolidine (yield 97.0%) was obtained.
Reaction SMILES: P(Cl)(Cl)(Cl)=O.[C:6]([C:8]1[C:9](=O)[NH:10][CH:11]=[C:12]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH:13]=1)#[N:7].P(Cl)(Cl)(Cl)(Cl)[Cl:22]>>[Cl:22][C:9]1[C:8]([C:6]#[N:7])=[CH:13][C:12]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)=[CH:11][N:10]=1
Reactant: N#Cc1cc(-c2ccccc2)c[nH]c1=O
Reactant: ClP(Cl)(Cl)(Cl)Cl
Solvent: O=P(Cl)(Cl)Cl
Product: N#Cc1cc(-c2ccccc2)cnc1Cl
Temperature: 140 °C
Reaction time: 1 h
Yield: 91.6 %

Procedure:
Under a nitrogen atmosphere, 68.4 grams (0.45 mole) of phosphorus oxychloride is warmed to a gentle reflux, and 38.9 grams (0.18 mole) of 3-cyano-5-phenylpyridin-2-one is added. Upon completion of addition, 93.6 grams (0.45 mole) of phosphorous pentachloride is added in small portions to maintain the gentle reflux. Upon completion of addition, the reaction mixture is then warmed slowly to about 140° C. where it is stirred for one hour. The reaction mixture is cooled, and excess phosphorus oxychloride is removed under reduced pressure. The concentrate is then poured into 400 grams of ice, where it is stirred until the ice melts. The mixture is then extracted with three 200 mL portions of methylene chloride and 100 mL of diethyl ether. The combined extracts are washed with 150 mL of water and 150 mL of an aqueous solution saturated with sodium chloride. The organic layer is dried with sodium sulfate and filtered. The filtrate is concentrated under reduced pressure at 30° C. to a residue. The residue is distilled under vacuum, yielding 35.4 grams of 2-chloro-3-cyano-5-phenylpyridine, bp 175°-179° C./4 mm Hg., as a crystalline material. The crystalline 2-chloro-3-cyano-5-phenylpyridine is recrystallized from hexane/methylene chloride, mp 149°-150° C.
Reaction SMILES: [Br:1]N1C(=O)CCC1=O.[CH3:9][N:10]1[CH2:15][CH2:14][N:13]([C:16]2[C:22]3[CH:23]=[CH:24][CH:25]=[C:26]4[CH2:27][CH2:28][N:20]([C:21]=34)[C:19]3[CH:29]=[CH:30][C:31]([CH3:33])=[CH:32][C:18]=3[N:17]=2)[CH2:12][CH2:11]1.ClCCl>CN(C)C=O>[Br:1][C:30]1[C:31]([CH3:33])=[CH:32][C:18]2[N:17]=[C:16]([N:13]3[CH2:12][CH2:11][N:10]([CH3:9])[CH2:15][CH2:14]3)[C:22]3[CH:23]=[CH:24][CH:25]=[C:26]4[CH2:27][CH2:28][N:20]([C:21]=34)[C:19]=2[CH:29]=1
Reactant: Cc1ccc2c(c1)N=C(N1CCN(C)CC1)c1cccc3c1N2CC3
Reactant: O=C1CCC(=O)N1Br
Solvent: ClCCl
Solvent: CN(C)C=O
Product: Cc1cc2c(cc1Br)N1CCc3cccc(c31)C(N1CCN(C)CC1)=N2
Reaction time: 0.5 h
Yield: 11.6 %

Procedure:
A solution of N-bromosuccinimide (0.91 g, 5.1 mmoles) in dimethylformamide (3 ml) was added dropwise to a solution of 6-(4-methyl-1-piperazinyl)-9-methyl-1,2-dihydrobenzo[b]pyrrolo[3,2,1-jk][1,4]benzodiazepine (1.6 g, 4.8 mmoles) in dimethylformamide (30 ml) at 0°-3° C. The reaction mixture was stirred for 30 minutes. The solution was poured into dichloromethane (250 ml), and was washed with brine (4 times, 150 ml), and dried over anhydrous magnesium sulfate. The solvent was removed at reduced pressure and the residue was dried. Purification was accomplished by flash chromatography on an aluminium oxide column (grade III, 60 g), eluted with dichloromethane (500 ml) and 2% methanol in dichloromethane (250 ml). The fractions containing the product were pooled and concentrated. Recrystallization from 2-propanol:water (1:1, 20 ml) yielded 230 mg (11.6%) of product, mp 177°-177° C.
Reaction SMILES: [Cl:1][C:2]1[N:7]=[C:6]([C:8]([O:10][CH3:11])=[O:9])[CH:5]=[C:4](Cl)[N:3]=1.[CH3:13][C@H:14]1[CH2:19][O:18][CH2:17][CH2:16][NH:15]1>C(Cl)Cl.C(N(CC)CC)C>[Cl:1][C:2]1[N:7]=[C:6]([C:8]([O:10][CH3:11])=[O:9])[CH:5]=[C:4]([N:15]2[CH2:16][CH2:17][O:18][CH2:19][C@@H:14]2[CH3:13])[N:3]=1
Reactant: COC(=O)c1cc(Cl)nc(Cl)n1
Reactant: C[C@H]1COCCN1
Solvent: CCN(CC)CC
Solvent: ClCCl
Product: COC(=O)c1cc(N2CCOC[C@@H]2C)nc(Cl)n1
Temperature: 25 °C
Reaction time: 1 h
Yield: 48 %

Procedure:
Methyl 2,6-dichloropyrimidine-4-carboxylate (5.00 g) was dissolved in DCM (120 mL). (3S)-3-Methylmorpholine (2.49 g) dissolved in triethylamine (3.70 mL) and DCM (10 mL) was added dropwise to the solution over 10 minutes. The reaction was left to stir at room temperature for 1 hour then the mixture concentrated in vacuo and dissolved in DCM (300 mL). The organics were washed with water (150 mL) and dried (MgSO4). The crude material was chromatographed on silica, eluting with 2.5% methanol in DCM, to give the desired compound (3.15 g) as a white solid.
Reaction SMILES: [N:1]1([C:6]2[CH:25]=[CH:24][C:9]([CH2:10][C:11]3[C:12]([CH3:23])=[CH:13][C:14]([CH:21]=O)=[C:15]([CH:20]=3)[C:16](OC)=[O:17])=[CH:8][CH:7]=2)[CH:5]=[CH:4][CH:3]=[N:2]1.Cl.[NH2:27][C@H:28]1[CH2:32][CH2:31][CH2:30][C@@H:29]1[OH:33].C(N(CC)CC)C.S([O-])([O-])(=O)=O.[Mg+2]>C1COCC1>[OH:33][C@H:29]1[CH2:30][CH2:31][CH2:32][C@@H:28]1[N:27]1[CH2:21][C:14]2[C:15](=[CH:20][C:11]([CH2:10][C:9]3[CH:8]=[CH:7][C:6]([N:1]4[CH:5]=[CH:4][CH:3]=[N:2]4)=[CH:25][CH:24]=3)=[C:12]([CH3:23])[CH:13]=2)[C:16]1=[O:17]
Reactant: COC(=O)c1cc(Cc2ccc(-n3cccn3)cc2)c(C)cc1C=O
Reactant: N[C@H]1CCC[C@@H]1O
Agent: Cl
Agent: O=S(=O)([O-])[O-]
Agent: [Mg+2]
Solvent: C1CCOC1
Solvent: CCN(CC)CC
Product: Cc1cc2c(cc1Cc1ccc(-n3cccn3)cc1)C(=O)N([C@H]1CCC[C@@H]1O)C2
Temperature: 25 °C
Reaction time: 8 h
Yield: 42 %

Procedure:
A solution of methyl 5-(4-(1H-pyrazol-1-yl)benzyl)-2-formyl-4-methylbenzoate (0.16 g), (1S,2S)-2-aminocyclopentanol hydrochloride (0.06 g), triethylamine (0.07 mL) and anhydrous magnesium sulfate (0.11 g) in THF (3.10 mL) was stirred at room temperature for 3 hr. The insoluble substance was removed by filtration, and the filtrate was concentrated under reduced pressure. The residue was diluted with methanol (3.10 mL) and THF (3.10 mL), sodium triacetoxyborohydride (0.20 g) was added thereto, and the mixture was stirred overnight at room temperature. The reaction mixture was diluted with ethyl acetate, and the mixture was washed with water and saturated brine. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (71 mg).
Reaction SMILES: [Cl:1][C:2]1[C:7]([F:8])=[C:6]([NH2:9])[CH:5]=[CH:4][N:3]=1.[Cl:10][C:11]1[CH:19]=[C:18]([I:20])[CH:17]=[C:16]([Cl:21])[C:12]=1[C:13](Cl)=[O:14].C(N(CC)CC)C>O1CCOCC1>[Cl:10][C:11]1[CH:19]=[C:18]([I:20])[CH:17]=[C:16]([Cl:21])[C:12]=1[C:13]([NH:9][C:6]1[CH:5]=[CH:4][N:3]=[C:2]([Cl:1])[C:7]=1[F:8])=[O:14]
Reactant: O=C(Cl)c1c(Cl)cc(I)cc1Cl
Reactant: Nc1ccnc(Cl)c1F
Solvent: C1COCCO1
Solvent: CCN(CC)CC
Product: O=C(Nc1ccnc(Cl)c1F)c1c(Cl)cc(I)cc1Cl
Temperature: 100 °C
Yield: 53.8 %

Procedure:
A mixture of 2-chloro-3-fluoropyridin-4-ylamine (1.73 g, 11.8 mmol), 2,6-dichloro-4-iodobenzoyl chloride (5.90 g, 17.65 mmol) and triethylamine (3.1 mL, 22.4 mmol) in dioxane (35 mL) was heated to 100° C. for 18 hours. The reaction mixture was partitioned between EtOAc and water. The organic layer washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The resultant residue was triturated with diethyl ether and dried under reduced pressure to give the desired compound as a pink solid (2.83 g, 54% yield). 1H NMR (300 MHz, CDCl3): δ 8.49-8.43 (m, 1H), 8.22 (d, J=5.5 Hz, 1H), 7.82-7.73 (m, 2H).
Reaction SMILES: [CH2:1]([O:3][C:4](=[O:17])[CH2:5][N:6]1[C:10](=[O:11])[CH:9]2[CH:12]=[C:13](Br)[S:14][CH:8]2[C:7]1=[O:16])[CH3:2].[CH3:18][O:19][C:20]1[CH:25]=[CH:24][C:23](B(O)O)=[CH:22][CH:21]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>COCCOC.C(OCC)(=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>[CH2:1]([O:3][C:4](=[O:17])[CH2:5][N:6]1[C:10](=[O:11])[CH:9]2[CH:12]=[C:13]([C:23]3[CH:24]=[CH:25][C:20]([O:19][CH3:18])=[CH:21][CH:22]=3)[S:14][CH:8]2[C:7]1=[O:16])[CH3:2]
Reactant: CCOC(=O)CN1C(=O)C2C=C(Br)SC2C1=O
Reactant: COc1ccc(B(O)O)cc1
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: [Cs+]
Solvent: COCCOC
Solvent: CCOC(C)=O
Product: CCOC(=O)CN1C(=O)C2C=C(c3ccc(OC)cc3)SC2C1=O
Temperature: 25 °C

Procedure:
Under a nitrogen atmosphere, (2-bromo-4,6-dioxo-3a,4,6,6a-tetrahydro-thieno[2,3-c]pyrrol-5-yl)-acetic acid ethyl ester, example 1-d (431 mg, 1.35 mmol), 4-methoxy-phenyl boronic acid (309 mg, 2.0 mmol), cesium carbonate (1.10 g, 3.4 mmol), and tetrakis(triphenylphosphine)palladium(0) (157 mg, 0.14 mmol) were suspended in 8 mL of ethylene glycol dimethyl ether. The reaction mixture was heated at reflux temperature for 5 hours, cooled to room temperature, and diluted with ethyl acetate. The organic mixture was successively washed with saturated sodium bicarbonate and brine solutions. The organic fractions were dried over anhydrous sodium sulfate and concentrated to a crude solid residue, which was then purified by column chromatography, eluting the title compound from silica gel with a gradient of (5-30%) ethyl acetate in hexanes to yield 197 mg of a white solid. MS: (+) m/z 348.05 (M+1).
Reaction SMILES: [Cl:1][C:2]1[CH:21]=[CH:20][C:5]([C:6]([NH:8][C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([CH:15]3OCC[O:16]3)[CH:10]=2)=[O:7])=[CH:4][CH:3]=1.Cl>O1CCOCC1.C(OCC)(=O)C>[Cl:1][C:2]1[CH:21]=[CH:20][C:5]([C:6]([NH:8][C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([CH:15]=[O:16])[CH:10]=2)=[O:7])=[CH:4][CH:3]=1
Reactant: O=C(Nc1cccc(C2OCCO2)c1)c1ccc(Cl)cc1
Agent: Cl
Solvent: CCOC(C)=O
Solvent: C1COCCO1
Product: O=Cc1cccc(NC(=O)c2ccc(Cl)cc2)c1
Temperature: 25 °C
Reaction time: 0.5 h
Yield: 84.4 %

Procedure:
A solution of 4-chloro-N-(3-[1,3]dioxolan-2-yl-phenyl)-benzamide (14.33 g, 47.2 mmol) in 1,4-dioxane (120 mL) is treated with 1N aq. HCl (120 mL) at RT for 1 h then at 60° C. for 30 min. The reaction mixture is cooled down to RT and diluted with ethyl acetate (100 mL). The organic phase is separated and the aqueous phase is extracted twice with ethyl acetate (100 mL). The combined organic phases are washed with brine (200 mL) and dried over MgSO4. After evaporation of the organic solvents the residue is triturated with diethyl ether to give the title compound (10.34 g, 84%) as a beige powder; LC-MS B: tR=0.83 min; [M+H]+=259.82.
Reaction SMILES: [CH3:1][N:2]([CH3:14])[C:3]([C:5]1[CH:13]=[CH:12][C:8]([C:9]([OH:11])=O)=[CH:7][CH:6]=1)=[O:4].ClC(OCC)=O.Cl.[NH2:22][CH2:23][CH2:24][O:25][C:26]1[CH:27]=[C:28]([CH:31]=[CH:32][C:33]=1[I:34])[C:29]#[N:30].Cl>CN(C)C=O.C(N(CC)CC)C>[I:34][C:33]1[CH:32]=[CH:31][C:28]([C:29]#[N:30])=[CH:27][C:26]=1[O:25][CH2:24][CH2:23][NH:22][C:9](=[O:11])[C:8]1[CH:7]=[CH:6][C:5]([C:3](=[O:4])[N:2]([CH3:1])[CH3:14])=[CH:13][CH:12]=1
Reactant: CN(C)C(=O)c1ccc(C(=O)O)cc1
Reactant: N#Cc1ccc(I)c(OCCN)c1
Agent: CCOC(=O)Cl
Agent: Cl
Solvent: CN(C)C=O
Solvent: CCN(CC)CC
Product: CN(C)C(=O)c1ccc(C(=O)NCCOc2cc(C#N)ccc2I)cc1
Reaction time: 0.08 h

Procedure:
600 mg (3.1 mmol) of 4-dimethylcarbamoylbenzoic acid and 1.25 g of triethylamine were stirred in dimethylformamide. 336 mg (3.1 mmol) of ethyl chloroformate was added to the resultant mixture, and they were stirred for 5 minutes. 3-(2-aminoethoxy)-4-iodobenzonitrile monohydrochloride was added to the mixture. The temperature was elevated to room temperature. After stirring for 2 hours, 1 N hydrochloric acid was added to the mixture. After extracting with ethyl acetate, the organic layer was washed with saturated aqueous sodium hydrogencarbonate solution and saturated aqueous NaCl a solution, and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was washed with ethyl acetate to obtain the title compound. Further, the residue obtained after the evaporation of the solvent from the wash solution was purified by the silica gel chromatography (ethyl acetate/methanol) to obtain the title compound.
Reaction SMILES: [Cl:1][C:2]1[C:3](=[O:9])[NH:4][N:5]=[CH:6][C:7]=1[Cl:8].[C:10]([O-])([O-])=O.[K+].[K+].IC>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.C(#N)C>[Cl:1][C:2]1[C:3](=[O:9])[N:4]([CH3:10])[N:5]=[CH:6][C:7]=1[Cl:8]
Reactant: O=C([O-])[O-]
Reactant: O=c1[nH]ncc(Cl)c1Cl
Agent: CCCC[N+](CCCC)(CCCC)CCCC
Agent: [Br-]
Agent: [K+]
Solvent: CI
Solvent: CC#N
Product: Cn1ncc(Cl)c(Cl)c1=O
Temperature: 115 °C
Reaction time: 4 h
Yield: 70.7 %

Procedure:
25 g (151 mmoles) of 4,5-dichloropyridazinone are placed in a stainless steel reactor in the presence of 25.13 g (181 mmoles) K2CO3, 1 g (3.03 mmoles) of tetrabutylammonium bromide and 14.2 mL (227 mmoles) of iodomethane in 150 mL acetonitrile. The reaction medium is agitated for 4 h at 115° C. then filtered. The filtrate is concentrated to dryness then solubilized in AcOEt and washed in acid water (pH 1), then with NaCl-saturated water. After drying over Na2SO4, the organic phases are evaporated and the residue obtained is purified by silica gel flash chromatography (CH2Cl2). 19.1 g of intermediate 3a are thus obtained in the form of a yellow solid (yield 70%). TLC silica gel 60 F 254 Merck, petroleum ether-AcOEt: 70:30, Rf=0.48.
Reaction SMILES: [Br:1][C:2]1[CH:23]=[CH:22][C:5]([C:6]([O:8][CH:9]2[CH2:14][CH2:13][N:12]([CH2:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[CH2:11][CH2:10]2)=[O:7])=[C:4]([N+:24]([O-])=O)[CH:3]=1.C(O)(=O)C>C(O)C.[Fe]>[NH2:24][C:4]1[CH:3]=[C:2]([Br:1])[CH:23]=[CH:22][C:5]=1[C:6]([O:8][CH:9]1[CH2:14][CH2:13][N:12]([CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH2:11][CH2:10]1)=[O:7]
Reactant: O=C(OC1CCN(Cc2ccccc2)CC1)c1ccc(Br)cc1[N+](=O)[O-]
Agent: [Fe]
Solvent: CCO
Solvent: CC(=O)O
Product: Nc1cc(Br)ccc1C(=O)OC1CCN(Cc2ccccc2)CC1
Yield: 106.6 %

Procedure:
0.42 g (0.001 mol) of 1-benzyl-piperidin-4-yl 4-bromo-2-nitro-benzoate was dissolved in 6 ml of ethanol and treated with 6 ml of glacial acetic acid and 0.225 g (0.004 mol) of iron powder. The mixture was boiled at reflux for 6 hrs. and concentrated and the residue was made basic with sat. sodium carbonate solution. The aqueous phase was extracted with ethyl acetate and the organic phase was washed with sat. sodium chloride solution and dried over sodium sulfate. After concentration the residue was chromatographed on silica gel with ethyl acetate/hexane (1:4). 0.415 g (100%) of 1-benzyl-piperidin-4-yl 2-amino-4-bromo-benzoate was obtained as white crystals.
Reaction SMILES: [NH2:1][C@H:2]1[C@@H:6]([C:7]([O:9][CH3:10])=[O:8])[C@@H:5]([CH3:11])[N:4]([C:12]([O:14][CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[O:13])[C@H:3]1[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.[CH:28]([C:31]1[CH:32]=[CH:33][C:34]([O:39][CH3:40])=[C:35]([CH:38]=1)[CH:36]=O)([CH3:30])[CH3:29].[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+].[OH-].[Na+]>C(Cl)Cl>[CH2:15]([O:14][C:12]([N:4]1[C@H:5]([CH3:11])[C@H:6]([C:7]([O:9][CH3:10])=[O:8])[C@H:2]([NH:1][CH2:36][C:35]2[CH:38]=[C:31]([CH:28]([CH3:30])[CH3:29])[CH:32]=[CH:33][C:34]=2[O:39][CH3:40])[C@@H:3]1[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)=[O:13])[C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1
Reactant: COC(=O)[C@@H]1[C@H](N)[C@H](c2ccccc2)N(C(=O)OCc2ccccc2)[C@@H]1C
Reactant: COc1ccc(C(C)C)cc1C=O
Agent: CC(=O)O[BH-](OC(C)=O)OC(C)=O
Agent: [Na+]
Agent: [OH-]
Solvent: ClCCl
Product: COC(=O)[C@@H]1[C@H](NCc2cc(C(C)C)ccc2OC)[C@H](c2ccccc2)N(C(=O)OCc2ccccc2)[C@@H]1C
Temperature: 25 °C
Yield: 126.4 %

Procedure:
To a stirred solution of (2S*,3S*,4R*,5R*)-3-amino-1-benzyloxycarbonyl-4-methoxycarbonyl-5-methyl-2-phenylpyrrolidine (0.93 g, 2.52 mmol) in dry CH2Cl2 (20 ml) was added a solution of 5-isopropyl-2-methoxybenzaldehyde (0.56 g, 3.15 mmol) in dry CH2Cl2 (5 ml) at room temperature. To this was added NaBH(OAc)3 (0.80 g, 3.78 mmol) portionwise at room temperature. The added NaBH(OAc)3 dissolved gradually with stirring at room temperature. After stirring for 1.5 hours at room temperature, the reaction mixture was basified to pH 10-11 by adding 10% NaOH aq. solution with ice-cooling. The layers were separated, and the aqueous layer was extracted with CHCl3 (×3). The combined CH2Cl2 layer and CHCl3 extracts were washed with sat. NaCl aq. solution (×1), dried (Na2SO4 --K2CO3), and concentrated in vacuo to give a yellow viscous oil (1.69 g). This was chromatographed over SiO2 (Merck Kieselgel 60, 20 g). Elution with n-hexane-AcOEt (30: 1) followed by CH2Cl2 --MeOH (200:1) gave title compound (1.36 g, quant.) as a pale yellow viscous oil: IRmax (film): 3350(w), 1735(s), 1700(vs), 1487(s), 1290(s), 1250(s), 1030(s), 810(s), 735(s), 700(s) cm-1 ; 1H-NMR δ: 7.50-7.15(m, 10H), 7.03(dd, J=8.4, 2.2 Hz, 1H), 6.96(d, J=2.2 Hz, 1H), 6.70(d, J=8.4 Hz, 1H), 5.15(br.d, J=7.7 Hz, 1H), 5.03(br.s, 2H), 4.22-4.06(m, 1H), 3.84-3.58(m, 3H), 3.71(s, 3H), 3.64(s, 3H), 2.90-2.58 (m, 2H), 1.61(br.d, J=5.5 Hz, 3H), 1.19(d, J=7.0 Hz, 6H) ppm.
Reaction SMILES: [OH:1][C:2]1[CH:14]=[CH:13][C:5]2[C:6]([CH2:9][C:10]([NH2:12])=[O:11])=[CH:7][O:8][C:4]=2[CH:3]=1.ClCCl.N1C=CN=C1.[C:23]([Si:27]([C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)Cl)([CH3:26])([CH3:25])[CH3:24]>CN(C=O)C>[C:23]([Si:27]([C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)([C:29]1[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=1)[O:1][C:2]1[CH:14]=[CH:13][C:5]2[C:6]([CH2:9][C:10]([NH2:12])=[O:11])=[CH:7][O:8][C:4]=2[CH:3]=1)([CH3:26])([CH3:24])[CH3:25]
Reactant: CC(C)(C)[Si](Cl)(c1ccccc1)c1ccccc1
Reactant: NC(=O)Cc1coc2cc(O)ccc12
Agent: c1c[nH]cn1
Solvent: CN(C)C=O
Solvent: ClCCl
Product: CC(C)(C)[Si](Oc1ccc2c(CC(N)=O)coc2c1)(c1ccccc1)c1ccccc1
Reaction time: 48 h
Yield: 77.6 %

Procedure:
To a solution of 2-(6-hydroxy-benzofuran-3-yl)-acetamide (0.23 g, 1.20 mmol) in a mixture of dry dichloromethane (20 mL) and DMF (6 mL) was added imidazole (0.34 g, 5.05 mmol), followed by tert-butyldiphenylchlorosilane (1.31 mL, 5.05 mmol) at room temperature and the mixture was stirred for two days. The solution was quenched with methanol and stirred for 10 min. The solvent was evaporated in vacuo and the residue was purified by column chromatography (methanol:dichloromethane; 5:95) to give the 2-[6-(tert-butyl-diphenyl-silanyloxy)-benzofuran-3-yl]-acetamide as a white solid (0.40 g, 78%). 1H NMR (DMSO-d6, 400 MHz) 1.06 (s, 9H), 3.38 (s, 2H), 6.74 (dd, J=1.8, 8.4 Hz, 1H), 6.80 (d, J=1.8 Hz, 1H), 7.40 (d, J=8.4 Hz, 1H), 7.42-7.54 (m, 7H), 7.64 (s, 1H), 7.70 (m, 4H), 7.80 (s, 1H).
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[C:4]([NH:17][C:18]2[N:19]=[CH:20][N:21]=[C:22]3[S:39][C:25]4[C:26]5[C:30]([CH2:31][CH2:32][C:24]=4[C:23]=23)=[N:29][N:28]([CH:33]2[CH2:38][CH2:37][NH:36][CH2:35][CH2:34]2)[CH:27]=5)[CH:5]=[CH:6][C:7]=1[O:8][CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([F:16])[CH:11]=1.[CH3:40][C:41]([CH3:43])=O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C>C1COCC1>[Cl:1][C:2]1[CH:3]=[C:4]([NH:17][C:18]2[N:19]=[CH:20][N:21]=[C:22]3[S:39][C:25]4[C:26]5[C:30]([CH2:31][CH2:32][C:24]=4[C:23]=23)=[N:29][N:28]([CH:33]2[CH2:38][CH2:37][N:36]([CH:41]([CH3:43])[CH3:40])[CH2:35][CH2:34]2)[CH:27]=5)[CH:5]=[CH:6][C:7]=1[O:8][CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([F:16])[CH:11]=1
Reactant: CC(C)=O
Reactant: Fc1cccc(COc2ccc(Nc3ncnc4sc5c(c34)CCc3nn(C4CCNCC4)cc3-5)cc2Cl)c1
Agent: CC(=O)O[BH-](OC(C)=O)OC(C)=O
Agent: [Na+]
Solvent: CC(=O)O
Solvent: C1CCOC1
Product: CC(C)N1CCC(n2cc3c(n2)CCc2c-3sc3ncnc(Nc4ccc(OCc5cccc(F)c5)c(Cl)c4)c23)CC1
Temperature: 25 °C
Reaction time: 16 h
Yield: 36.5 %

Procedure:
To a solution of N-{3-chloro-4-[(3-fluorobenzyl)oxy]phenyl}-2-piperidin-4-yl-4,5-dihydro-2H-pyrimido[5′,4′:4,5]thieno[2,3-e]indazol-6-amine (40 mg, 0.07 mmol, 1 eq) in THF (1 mL) was added acetone (8 mg, 0.14 mmol, 2 eq), sodium triacetoxyborohydride (23 mg, 0.11 mmol, 1.5 eq) and trace amount of acetic acid. It was stirred at rt for 16 h. The mixture was purified by preparative HPLC to yield the desired product (15.4 mg, 36%). 1H-NMR (DMSO-d6) δ 8.41 (broad, 1H), 8.32 (d, 1H), 8.01 (d, 1H), 7.74 (d, 1H), 7.5 (dd, 1H), 7.44 (m, 1H), 7.29 (m, 2H), 7.20 (d, 1H), 7.15 (m, 1H), 5.24 (s, 2H), 4.04 (m, 1H), 3.36 (m, 4H), 2.92 (m, 3H), 2.74 (m, 1H), 2.25 (m, 1H), 2.02 (m, 2H), 1.89 (m, 2H), 0.99 (d, 6H). LCMS RT=2.87 min; [M+H]+=603.2.