Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [CH3:1]N(C)C=O.P(Cl)(Cl)(Cl)=O.[F:11][C:12]1[CH:17]=[C:16]([F:18])[CH:15]=[CH:14][C:13]=1[NH:19][C:20]1[N:33]=C(OC)[C:31]([F:36])=[CH:30][C:21]=1[C:22]([CH2:24][C:25]([O:27][CH2:28][CH3:29])=[O:26])=[O:23].O.[CH:38]([Cl:41])(Cl)Cl>ClCCCl>[Cl:41][C:38]1[N:33]=[C:20]2[C:21]([C:22](=[O:23])[C:24]([C:25]([O:27][CH2:28][CH3:29])=[O:26])=[CH:1][N:19]2[C:13]2[CH:14]=[CH:15][C:16]([F:18])=[CH:17][C:12]=2[F:11])=[CH:30][C:31]=1[F:36]
Reactant: CN(C)C=O
Reactant: ClC(Cl)Cl
Reactant: CCOC(=O)CC(=O)c1cc(F)c(OC)nc1Nc1ccc(F)cc1F
Solvent: O=P(Cl)(Cl)Cl
Solvent: O
Solvent: ClCCCl
Product: CCOC(=O)c1cn(-c2ccc(F)cc2F)c2nc(Cl)c(F)cc2c1=O
Yield: 62.6 %

Procedure:
In 2 ml of 1,2-dichloroethane was dissolved 130 mg of N,N-dimethylformamide, and 270 mg of phosphorus oxychloride was dropped thereinto with ice-cooling, after which the resulting mixture was subjected to reaction at the same temperature for 10 minutes. Thereafter, 200 mg of ethyl 2-[2-(2,4-difluorophenylamino)-5-fluoro-6-methoxynicotinoyl]acetate was added to the reaction mixture, and the resulting mixture was subjected to reaction under reflux for 4.5 hours. The reaction mixture was poured into 30 ml of water, and 30 ml of chloroform was then added thereto. The organic layer was thereafter separated, washed successively with 20 ml of water and 20 ml of saturated aqueous sodium chloride solution, and then dried over anhydrous magnesium sulfate. The solvent was removed by distillation under reduced pressure, and the residue thus obtained was purified by a column chromatography [Wako Silica Gel C-200, eluant: benzene-ethyl acetate (10:1 by volume)] to obtain 130 mg (yield 62.6%) of ethyl 7-chloro-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate. The physical properties of this compound were identical with those of the compound obtained in Example 51.
Reaction SMILES: C([O:8][C:9]1[CH:24]=[C:23]([B:25]2[O:29][C:28]([CH3:31])([CH3:30])[C:27]([CH3:33])([CH3:32])[O:26]2)[CH:22]=[CH:21][C:10]=1[C:11]([O:13]CC1C=CC=CC=1)=[O:12])C1C=CC=CC=1.O1CCCC1>CO.[C].[Pd]>[OH:8][C:9]1[CH:24]=[C:23]([B:25]2[O:29][C:28]([CH3:31])([CH3:30])[C:27]([CH3:33])([CH3:32])[O:26]2)[CH:22]=[CH:21][C:10]=1[C:11]([OH:13])=[O:12]
Reactant: CC1(C)OB(c2ccc(C(=O)OCc3ccccc3)c(OCc3ccccc3)c2)OC1(C)C
Agent: [Pd]
Solvent: CO
Solvent: C1CCOC1
Product: CC1(C)OB(c2ccc(C(=O)O)c(O)c2)OC1(C)C
Temperature: 25 °C
Reaction time: 3 h
Yield: 101.1 %

Procedure:
To a solution of benzyl 2-benzyloxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (0.243 g) in methanol (6 mL)/tetrahydrofuran (6 mL) was added 10% palladium-carbon (0.05 g) at room temperature under an atmosphere of argon. The mixture was stirred at room temperature for 3 hrs under an atmosphere of hydrogen. The catalyst was removed by filtration, and the solvent was evaporated under reduced pressure to afford the title compound (0.146 g).
Reaction SMILES: OO.C(OC(C(F)(F)F)=O)(C(F)(F)F)=[O:4].[N:16]1([CH2:22][CH2:23][CH2:24][NH:25][C:26]2[N:27]=[N+:28]([O-:40])[C:29]3[CH:39]=[C:38]4[C:33]([CH2:34][CH2:35][CH2:36][CH2:37]4)=[CH:32][C:30]=3[N:31]=2)[CH2:21][CH2:20][O:19][CH2:18][CH2:17]1.C(O)(C(F)(F)F)=O>C(Cl)Cl.N>[N:16]1([CH2:22][CH2:23][CH2:24][NH:25][C:26]2[N:27]=[N+:28]([O-:40])[C:29]3[CH:39]=[C:38]4[C:33]([CH2:34][CH2:35][CH2:36][CH2:37]4)=[CH:32][C:30]=3[N+:31]=2[O-:4])[CH2:21][CH2:20][O:19][CH2:18][CH2:17]1
Reactant: [O-][n+]1nc(NCCCN2CCOCC2)nc2cc3c(cc21)CCCC3
Reactant: O=C(OC(=O)C(F)(F)F)C(F)(F)F
Agent: N
Agent: OO
Solvent: ClCCl
Solvent: O=C(O)C(F)(F)F
Product: [O-][n+]1nc(NCCCN2CCOCC2)[n+]([O-])c2cc3c(cc21)CCCC3
Temperature: 0 °C
Reaction time: 0.08 h
Yield: 13 %

Procedure:
H2O2 (70%, 0.36 mL, ca. 6.0 mmol) was added dropwise to a stirred solution of TFAA (0.96 mL, 6.0 mmol) in DCM (5 mL) at 0° C. The solution was stirred at 0° C. for 5 min, warmed to 20° C. for 10 min, then added to a stirred solution of 1-oxide 179 (204 mg, 0.60 mmol) and TFA (0.24 mL, 3.0 mmol) in DCM (5 mL) at 0° C. The solution was stirred at 20° C. for 8 h, diluted with dilute aqueous NH3 solution (10 mL) and extracted with DCM (5×50 mL). The combined organic fraction was dried and the solvent evaporated. The residue was purified by chromatography, eluting with a gradient (0-2%) of MeOH/DCM, to give 1,4-dioxide 180 (28 mg, 13%) as a red solid which was converted to the hydrochloride salt: mp (MeOH/DCM) 182-185° C.; 1H NMR [(CD3)2SO] δ 10.29 (s, 1H, HCl), 8.35 (br s, 1H, NH), 7.95 (s, 1H, H-10), 7.87 (s, 1H, H-5), 3.92-4.01 (m, 2H, CH2O), 3.37 (m, 4H, CH2N, CH2O), 2.88-3.22 (m, 8H, 2×CH2N, H-6, H-9), 2.53 (t, J=5.6 Hz, 2H, CH2N), 2.00-2.09 (m, 2H, CH2N), 1.74-1.83 (m, 4H, H-7, H-8); 13C NMR [(CD3)2SO] δ 149.2, 147.8, 138.0, 136.1, 128.5, 119.4, 115.0, 63.0 (2), 53.5, 50.9 (2), 37.9, 29.4, 28.5, 22.7, 21.7, 21.6. Anal. calcd for C18H25N5O3.2HCl.2H2O: C, 46.2; H, 6.7; N, 15.0. Found: C, 46.3; H, 6.4; N, 15.0%.
Reaction SMILES: [CH2:1]([O:8][C:9]1[C:16]([OH:17])=[CH:15][CH:14]=[CH:13][C:10]=1[CH:11]=[O:12])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C1(C)C=CC(S(O[CH2:28][C@@H:29]2[O:31][CH2:30]2)(=O)=O)=CC=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[CH2:1]([O:8][C:9]1[C:16]([O:17][CH2:28][C@@H:29]2[O:31][CH2:30]2)=[CH:15][CH:14]=[CH:13][C:10]=1[CH:11]=[O:12])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
Reactant: O=Cc1cccc(O)c1OCc1ccccc1
Reactant: Cc1ccc(S(=O)(=O)OC[C@H]2CO2)cc1
Agent: O=C([O-])[O-]
Agent: [K+]
Solvent: CN(C)C=O
Product: O=Cc1cccc(OC[C@H]2CO2)c1OCc1ccccc1
Temperature: 60 °C
Yield: 19 %

Procedure:
A mixture of 2-benzyloxy-3-hydroxybenzaldehyde (60.0 g), (R)-glycidyl 4-toluenesulphonate (60.0 g) and potassium carbonate (74 g) in dry dimethylformamide (600 ml) was stirred and heated at 60° C. for 14 hours. After cooling the solvent was removed in vacuo , water (250 ml) added, and the mixture extracted with ether (2×200 ml), then ethyl acetate (2×400 ml). The combined extracts were washed with brine (2×500 ml) and dried over magnesium sulphate. The solvent was removed in vacuo and the residue purified by flash chromatography on silica, pre-adsorbing onto silica first by evaporation from a solution in dichloromethane, then eluting with a 3:1 mixture of petroleum ether (b.p. 40-60° C.) and ether. Appropriate fractions were combined and the solvent removed in vacuo to give (R)-2-benzyloxy-3-(2,3-epoxypropoxy)benzaldehyde (14.22 g). A further crop of product (33.37 g) was obtained by extraction of the silica employed in the chromatography with ether (6×500 ml), followed by concentration of the combined extracts to a volume of -500 ml and cooling overnight, filtering, then washing the precipitate with a 1:1 mixture of petroleum ether (b.p. 40-60° C.) and ether. The solvent was removed from the filtrate in vacuo and the residue purified by flash chromatography by the method described above, giving a third crop (9.68 g) of product. Combined yield of product 57.27 g.
Reaction SMILES: [CH3:1][O:2][CH2:3][CH2:4][N:5]1[CH2:10][CH2:9][N:8]([CH2:11][C:12]2[CH:13]=[C:14]3[N:20]=[C:19]([C:21]4[CH:27]=[CH:26][CH:25]=[CH:24][C:22]=4[NH2:23])[S:18][C:15]3=[N:16][CH:17]=2)[CH2:7][CH2:6]1.[C:28]1([C:34]2[S:35][CH:36]=[C:37]([C:39](O)=[O:40])[N:38]=2)[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>O>[CH3:1][O:2][CH2:3][CH2:4][N:5]1[CH2:10][CH2:9][N:8]([CH2:11][C:12]2[CH:13]=[C:14]3[N:20]=[C:19]([C:21]4[CH:27]=[CH:26][CH:25]=[CH:24][C:22]=4[NH:23][C:39]([C:37]4[N:38]=[C:34]([C:28]5[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=5)[S:35][CH:36]=4)=[O:40])[S:18][C:15]3=[N:16][CH:17]=2)[CH2:7][CH2:6]1
Reactant: O=C(O)c1csc(-c2ccccc2)n1
Reactant: COCCN1CCN(Cc2cnc3sc(-c4ccccc4N)nc3c2)CC1
Agent: CN(C)C(On1nnc2cccnc21)=[N+](C)C
Agent: F[P-](F)(F)(F)(F)F
Solvent: CCN(C(C)C)C(C)C
Solvent: O
Product: COCCN1CCN(Cc2cnc3sc(-c4ccccc4NC(=O)c4csc(-c5ccccc5)n4)nc3c2)CC1

Procedure:
The title compound was prepared according to amide synthesis general method A, utilizing 2-(6-((4-(2-methoxyethyl)piperazin-1-yl)methyl)thiazolo[5,4-b]pyridin-2-yl)aniline and 2-phenylthiazole-4-carboxylic acid (3 eq), HATU (3 eq) and DIPEA (5 eq). The product was isolated by precipitation by the addition of water, triturated with hot methanol and purified by silica gel chromatography (gradient 0 to 10% methanol in CH2Cl2). MS Calcd for C30H30N6O2S2: 570.19. Found (M+H)+ m/z=571.
Reaction SMILES: [N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[C:7]#[C:8][CH2:9][CH2:10][C:11]1[O:12][C:13]2[C:14](=[C:16]([OH:20])[CH:17]=[CH:18][CH:19]=2)[N:15]=1.CI.[C:23]([O-])([O-])=O.[K+].[K+]>CN(C=O)C.C(Cl)Cl>[CH3:23][O:20][C:16]1[C:14]2[N:15]=[C:11]([CH2:10][CH2:9][C:8]#[C:7][C:2]3[CH:3]=[CH:4][CH:5]=[CH:6][N:1]=3)[O:12][C:13]=2[CH:19]=[CH:18][CH:17]=1
Reactant: O=C([O-])[O-]
Reactant: Oc1cccc2oc(CCC#Cc3ccccn3)nc12
Agent: [K+]
Solvent: CN(C)C=O
Solvent: ClCCl
Solvent: CI
Product: COc1cccc2oc(CCC#Cc3ccccn3)nc12
Temperature: 25 °C
Yield: 47.4 %

Procedure:
A mixture of 2-(4-(pyridin-2-yl)but-3-ynyl)benzo[d]oxazol-4-ol (20 mg, 76 μmol, Example 70), methyl iodide (57 μL, 114 μmol) and K2CO3 (18 mg, 130 μmol) in DMF (2 mL) was stirred under reflux for 3 h. The reaction mixture was then allowed to cool to room temperature and was dissolved in DCM. The organic phase was washed with water, HCl 1N; saturated solution of NaHCO3, brine, dried over MgSO4, filtered and evaporated. The crude residue was purified by flash chromatography (DCM/MeOH 99:1) to yield 10 mg (36 μmol, 47%) of 4-methoxy-2-(4-(pyridin-2-yl)but-3-ynyl)benzo[d]oxazole as a brown solid.
Reaction SMILES: [Cl:1][C:2]1[CH:19]=[CH:18][CH:17]=[CH:16][C:3]=1[CH2:4][O:5][C:6]1[CH:14]=[CH:13][C:12]([F:15])=[CH:11][C:7]=1[C:8](O)=[O:9]>C1COCC1>[Cl:1][C:2]1[CH:19]=[CH:18][CH:17]=[CH:16][C:3]=1[CH2:4][O:5][C:6]1[CH:14]=[CH:13][C:12]([F:15])=[CH:11][C:7]=1[CH2:8][OH:9]
Reactant: O=C(O)c1cc(F)ccc1OCc1ccccc1Cl
Solvent: C1CCOC1
Product: OCc1cc(F)ccc1OCc1ccccc1Cl
Temperature: 25 °C
Reaction time: 1 h

Procedure:
5.50 g (20 mmol) of 2-(2-chlorobenzyloxy)-5-fluorobenzoic acid are dissolved in 25 ml of THF, heated to reflux and then 20 ml of 1 M borane-dimethyl sulfide complex are added dropwise. The reaction solution is then cooled to room temperature and stirred at this temperature for 1 h. The solvent is distilled out in vacuo, and water is added to the residue. Acidification is then carried out cautiously (copious gas evolution) with 1 N hydrochloric acid. 1 N sodium hydroxide solution is then added to make slightly basic, and the aqueous phase is extracted three times with dichloromethane. The organic phases are dried over magnesium sulfate, filtered and washed with dichloromethane, and the filtrate is concentrated. Petroleum ether is added to the residue, and the crystals which have separated out are filtered off with suction and dried on a clay dish. 3.65 g (13.6 mmol, 68% of theory) of the title compound are isolated.
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][C:26]=1[F:27])[CH2:5][N:6]1[CH2:15][CH2:14][C:13]2[C:12]([C:16]([N:18]([CH3:20])C)=[O:17])=[N:11][C:10]([OH:21])=[C:9]([OH:22])[C:8]=2[C:7]1=[O:23].C[O-].[Mg+2].C[O-].Br[CH2:34]CNC(=O)OCCCC>CO.CS(C)=O.C(OCC)(=O)C>[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][C:26]=1[F:27])[CH2:5][N:6]1[CH2:15][CH2:14][C:13]2[C:8](=[C:9]([OH:22])[C:10](=[O:21])[N:11]3[CH2:34][CH2:20][NH:18][C:16](=[O:17])[C:12]3=2)[C:7]1=[O:23]
Reactant: CCCCOC(=O)NCCBr
Reactant: CN(C)C(=O)c1nc(O)c(O)c2c1CCN(Cc1ccc(F)c(Cl)c1)C2=O
Agent: C[O-]
Agent: [Mg+2]
Solvent: CO
Solvent: CCOC(C)=O
Solvent: CS(C)=O
Product: O=C1NCCn2c1c1c(c(O)c2=O)C(=O)N(Cc2ccc(F)c(Cl)c2)CC1
Temperature: 60 °C
Reaction time: 1 h

Procedure:
A mixture of 6-(3-chloro-4-fluorobenzyl)-3,4-dihydroxy-N,N-dimethyl-5-oxo-5,6,7,8-tetrahydro-2,6-naphthyridine-1-carboxamide (1.00 g, 2.63 mmol; Example 1, Step 9) and magnesium methoxide in methanol (13.1 mL, 6-10% methanol solution available from Aldrich) in DMSO (26 mL) was heated at 60° C. for one hour. Methanol was exhaustively removed under vacuum over 45 minutes. The resulting DMSO solution was treated with tort-butyl (2-bromoethyl)carbamate (2.94 g, 13.13 mmol) and stirred at 60° C. under an atmosphere of nitrogen for one hour. The reaction mixture was diluted with ethyl acetate and washed successively with 10% sodium thiosulfate and brine. The organic extract was dried over anhydrous sodium sulfate, filtered, and concentrated under vacuum. The residue was purified by reverse phase high pressure liquid chromatography. Collection and lyophilization of appropriate fractions provided the title compound.
Reaction SMILES: [NH2:1][C:2]1[CH:7]=[C:6](O)[N:5]=[C:4]([CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])[N:3]=1.P(Cl)(Cl)([Cl:17])=O>>[NH2:1][C:2]1[CH:7]=[C:6]([Cl:17])[N:5]=[C:4]([CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])[N:3]=1
Reactant: CCOC(=O)Cc1nc(N)cc(O)n1
Reactant: O=P(Cl)(Cl)Cl
Product: CCOC(=O)Cc1nc(N)cc(Cl)n1
Reaction time: 4 h

Procedure:
A mixture of ethyl 2-(4-amino-6-hydroxypyrimidin-2-yl)acetate (15.8 g.) and phosphoryl chloride (75 ml.) was stirred for 4 hours under heating at 80° to 90° C. The resultant solution was allowed to cool and phosphoryl chloride was distilled off. The remaining oily substance was poured into a mixture of ice-water (200 ml.) and ethyl acetate (200 ml.). The resultant mixture was neutralized with an aqueous solution of ammonia and extracted with ethyl acetate. The extract was washed with water, dried over magnesium sulfate and then the solvent was distilled off. The resultant residue was washed with diisopropyl ether and then dried to give pale brown crystals of ethyl 2-(4-amino-6-chloropyrimidin-2-yl)acetate (8.1 g.), mp. 127° to 128° C.
Reaction SMILES: [NH2:1][C:2]1[N:7]=[C:6](Cl)[CH:5]=[C:4]([Cl:9])[N:3]=1.[Cl:10][C:11]1([Cl:16])[CH2:13][CH:12]1[CH2:14][NH2:15].C(N(CC)CC)C>C(O)C>[NH2:1][C:2]1[N:3]=[C:4]([Cl:9])[CH:5]=[C:6]([NH:15][CH2:14][CH:12]2[CH2:13][C:11]2([Cl:16])[Cl:10])[N:7]=1
Reactant: Nc1nc(Cl)cc(Cl)n1
Reactant: NCC1CC1(Cl)Cl
Solvent: CCN(CC)CC
Solvent: CCO
Product: Nc1nc(Cl)cc(NCC2CC2(Cl)Cl)n1

Procedure:
A mixture consisting of 38.8 gm (0.24 mol) of 2-amino-4,6-dichloro-pyrimidine, 300 ml of ethanol, 33.1 gm (0.24 mol) of (2,2-dichloro-cyclopropylmethyl)amine and 36 ml (0.26 mol) of triethylamine was refluxed for six hours while stirring. Thereafter, the solvent was distilled off, the oily residue was stirred with about 300 ml of acetone, and the precipitated triethylamine hydrochloride was suction-filtered off. The acetone was distilled out of the filtrate in vacuo, and the residue was admixed with 500 ml of diisopropyl ether and 100 ml of water. The organic phase was separated and again washed with water, dried with magnesium sulfate, de-colorized and evaporated. The residue was triturated with gasoline (b.p. 40°-60° C.) to yield the title compound as colorless crystals.
Reaction SMILES: [C:1]([C:5]1[CH:10]=[CH:9][C:8]([N+:11]([O-:13])=[O:12])=[CH:7][C:6]=1[S:14](Cl)(=[O:16])=[O:15])([CH3:4])([CH3:3])[CH3:2].[NH4+:18].[OH-]>CCOCC.O>[C:1]([C:5]1[CH:10]=[CH:9][C:8]([N+:11]([O-:13])=[O:12])=[CH:7][C:6]=1[S:14]([NH2:18])(=[O:16])=[O:15])([CH3:4])([CH3:3])[CH3:2]
Reactant: CC(C)(C)c1ccc([N+](=O)[O-])cc1S(=O)(=O)Cl
Reactant: [NH4+]
Agent: [OH-]
Solvent: O
Solvent: CCOCC
Product: CC(C)(C)c1ccc([N+](=O)[O-])cc1S(N)(=O)=O
Temperature: 25 °C
Reaction time: 8 h
Yield: 34 %

Procedure:
To a solution of 2-tert-butyl-5-nitrobenzene-1-sulfonyl chloride (100 mg, 0.36 mmol) in ether (2 mL) was added aqueous NH4OH (128 μL, 3.6 mmol) at 0° C. The mixture was stirred at room temperature overnight, diluted with water and extracted with ether. The combined ether extracts were washed with brine and dried over Na2SO4. After removal of solvent, the residue was purified by column chromatography (0-50% EtOAc-Hexane) to give 2-tert-butyl-5-nitrobenzene-1-sulfonamide (31.6 mg, 34%).
Reaction SMILES: [N:1]1[CH:6]=[CH:5][C:4]([C:7](=O)[CH2:8][C:9]2[CH:13]=[CH:12][S:11][CH:10]=2)=[CH:3][CH:2]=1.[CH2:15]([O:17][C:18]1[CH:19]=[C:20]([CH:23]=[C:24]([N+:27]([O-:29])=[O:28])[C:25]=1[OH:26])[CH:21]=O)[CH3:16].[NH2:30][C:31]([NH2:33])=[O:32].[ClH:34]>C(O)C>[CH2:15]([O:17][C:18]1[CH:19]=[C:20]([CH:21]2[C:8]([C:9]3[CH:13]=[CH:12][S:11][CH:10]=3)=[C:7]([C:4]3[CH:5]=[CH:6][N:1]=[CH:2][CH:3]=3)[NH:33][C:31](=[O:32])[NH:30]2)[CH:23]=[C:24]([N+:27]([O-:29])=[O:28])[C:25]=1[OH:26])[CH3:16].[ClH:34]
Reactant: CCOc1cc(C=O)cc([N+](=O)[O-])c1O
Reactant: NC(N)=O
Reactant: O=C(Cc1ccsc1)c1ccncc1
Agent: Cl
Solvent: CCO
Product: CCOc1cc(C2NC(=O)NC(c3ccncc3)=C2c2ccsc2)cc([N+](=O)[O-])c1O

Procedure:
A mixture of 1-(pyridin-4-yl)-2-(thiophen-3-yl)ethanone (Intermediate 70) (180 mg, 0.89 mmol), 3-ethoxy-4-hydroxy-5-nitrobenzaldehyde (188 mg, 0.89 mmol), urea (160 mg, 2.70 mmol), conc. hydrochloric acid (0.5 mL) in ethanol (3 mL) was refluxed for 45 hours. The mixture was concentrated and purified by prep-HPLC (0.1% TFA as additive). To the residue was added HCl/MeOH (2 mL, 2 N) and concentrated to give Compound 136 as HCl salt (24.3 mg, yield 6%). 1HNMR (DMSO-d6 400 MHZ): δ 10.31 (brs, 1H), 9.03 (s, 1H), 8.72 (d, J=6.4 Hz, 2H), 7.71 (s, 1H), 7.61 (d, J=6.0 Hz, 2H), 7.45 (d, J=2.0 Hz, 1H), 7.30 (dd, J=4.8, 2.8 Hz, 1H), 7.17 (d, J=1.6 Hz, 1H), 7.02 (dd, J=2.8, 1.2 Hz, 1H), 6.50 (dd, J=5.2, 1.2 Hz, 1H), 5.32 (d, J=2.4 Hz, 1H), 4.05 (q, J=6.8 Hz, 2H), 1.34 (t, J=6.8 Hz, 3H). MS (ESI): m/z 438.9 [M+H]+.
Reaction SMILES: [OH:1][CH2:2][C:3]12[C:11]([CH3:13])([CH3:12])[CH:8]([CH2:9][CH2:10]1)[C:6](=[O:7])[C:4]2=[O:5].[C:14]([C:18]1[CH:23]=C(C)C=C(C(C)(C)C)[C:19]=1[OH:29])(C)(C)C.C(N(CC)CC)C.C(Cl)(=O)C(C)=C>O1CCOCC1>[C:19]([O:1][CH2:2][C:3]12[C:11]([CH3:13])([CH3:12])[CH:8]([CH2:9][CH2:10]1)[C:6](=[O:7])[C:4]2=[O:5])(=[O:29])[C:18]([CH3:23])=[CH2:14]
Reactant: CC1(C)C2CCC1(CO)C(=O)C2=O
Reactant: Cc1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1
Agent: C=C(C)C(=O)Cl
Solvent: CCN(CC)CC
Solvent: C1COCCO1
Product: C=C(C)C(=O)OCC12CCC(C(=O)C1=O)C2(C)C
Temperature: 25 °C
Reaction time: 2 h

Procedure:
Analogously to L. Angiolini et al., 2000, Macromol. Chem. Phys. 201, 2646, a mixture of 10 mmol (1.82 g) of 10-hydroxycamphorquinone, 10 mg of 2,6-di-tert.butyl-4-methylphenol (inhibitor), 1.5 ml of dry triethylamine (TEA) and 50 ml of absolute 1,4-dioxane, under argon and with exclusion of daylight, was added dropwise at 0° C. to a stirred solution of 11 mmol (1.15 g) of methacrylic acid chloride, dissolved in 20 ml of 1,4-dioxane. There followed stirring for 2 h at room temperature and 2 h under reflux. The reaction mixture was filtered off from the formed TEA-HCl, diluted with diethyl ether, washed with 5% sodium bicarbonate solution and with water. After drying over anhydrous Na2SO4 the solution was concentrated to dryness in a rotary evaporator and the solid crude product recrystallized from toluene/n-hexane (20:80 v/v). 1.55 g (62% of the theory) of yellow crystals of 10-methacryloyloxycamphorquinone MACQ was obtained.
Reaction SMILES: C[O:2][C:3]([CH:5]1[CH2:9][N:8]([C@@H:10]([CH2:14][CH3:15])[C:11]([NH2:13])=[O:12])[C:7](=[O:16])[CH2:6]1)=O.[NH4+].[Cl-].CC(C)=O>CCO.C(Cl)Cl>[OH:2][CH2:3][CH:5]1[CH2:9][N:8]([C@@H:10]([CH2:14][CH3:15])[C:11]([NH2:13])=[O:12])[C:7](=[O:16])[CH2:6]1
Reactant: CC[C@@H](C(N)=O)N1CC(C(=O)OC)CC1=O
Agent: [Cl-]
Agent: [NH4+]
Solvent: CC(C)=O
Solvent: ClCCl
Solvent: CCO
Product: CC[C@@H](C(N)=O)N1CC(CO)CC1=O
Temperature: 0 °C
Reaction time: 2 h

Procedure:
In a 2 l three necked flask fitted with mechanical stirrer and reflux condenser, under inert atmosphere, a solution of 133 g (583 mmoles, 1 eq) of (2S)-2-(4-methoxycarbonyl-2-oxo-1-pyrrolidinyl)butanamide 11 in 200 ml of EtOH is added to 300 ml of EtOH, and the mixture cooled down to 0° C. 66.2 g (1.74 mole, 12 eq) of solid NaBbe are then added by portions over 1.5 hour, all the while maintaining the temperature between 2 and 4° C. After 2 hours, the temperature is raised to 12° C. for 1 hour, and lowered again to 24° C. 240 ml of a saturated solution of NH4Cl are added dropwise over 1 hour, followed by 120 ml of acetone, and the mixture is left overnight at room temperature. The mixture is filtered, the precipitate washed with 3×70 ml of EtOH and the combined organic fractions concentrated to dryness to give 148 g of crude 6. It is suspended in 300 ml of CH2Cl2 and stirred for 30 min, filtered, washed with 2×100 ml of CH2Cl2 and dried to give 114 g of pure 6, 98%.
Reaction SMILES: [C:1]([O:5][C:6](=[O:33])[N:7]([CH2:9][C:10]1[CH:14]=[C:13]([C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([CH:21]=[O:22])[C:16]=2[F:23])[N:12]([S:24]([C:27]2[CH:28]=[N:29][CH:30]=[CH:31][CH:32]=2)(=[O:26])=[O:25])[CH:11]=1)[CH3:8])([CH3:4])([CH3:3])[CH3:2].[BH4-].[Na+].CO.O>O1CCCC1>[C:1]([O:5][C:6](=[O:33])[N:7]([CH2:9][C:10]1[CH:14]=[C:13]([C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([CH2:21][OH:22])[C:16]=2[F:23])[N:12]([S:24]([C:27]2[CH:28]=[N:29][CH:30]=[CH:31][CH:32]=2)(=[O:25])=[O:26])[CH:11]=1)[CH3:8])([CH3:4])([CH3:2])[CH3:3]
Reactant: CN(Cc1cc(-c2cccc(C=O)c2F)n(S(=O)(=O)c2cccnc2)c1)C(=O)OC(C)(C)C
Agent: [BH4-]
Agent: [Na+]
Solvent: O
Solvent: C1CCOC1
Solvent: CO
Product: CN(Cc1cc(-c2cccc(CO)c2F)n(S(=O)(=O)c2cccnc2)c1)C(=O)OC(C)(C)C
Reaction time: 0.5 h
Yield: 61.1 %

Procedure:
To a solution of tert-butyl{[5-(2-fluoro-3-formylphenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate (388 mg) in tetrahydrofuran (8 mL) were added under ice-cooling, sodium borohydride (41.3 mg) and methanol (3 mL). After stirring at the same temperature for 30 min, water was added to the reaction mixture and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (eluent: hexane-ethyl acetate=2:1→1:2) to give the title compound as a colorless oil (yield 238 mg, 61%).
Reaction SMILES: [CH:1]1([CH2:4][OH:5])[CH2:3][CH2:2]1.[H-].[Na+].Br[C:9]1[N:10]=[CH:11][C:12]([C:22]([OH:24])=[O:23])=[N:13][C:14]=1[C:15]1[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][CH:16]=1.Cl>CN(C=O)C.O>[Cl:21][C:18]1[CH:17]=[CH:16][C:15]([C:14]2[N:13]=[C:12]([C:22]([OH:24])=[O:23])[CH:11]=[N:10][C:9]=2[O:5][CH2:4][CH:1]2[CH2:3][CH2:2]2)=[CH:20][CH:19]=1
Reactant: OCC1CC1
Reactant: O=C(O)c1cnc(Br)c(-c2ccc(Cl)cc2)n1
Agent: Cl
Agent: [H-]
Agent: [Na+]
Solvent: O
Solvent: CN(C)C=O
Product: O=C(O)c1cnc(OCC2CC2)c(-c2ccc(Cl)cc2)n1
Temperature: 25 °C
Reaction time: 0.25 h
Yield: 86.3 %

Procedure:
Cyclopropylmethanol (1.54 g, 1.73 ml, 21.3 mmol) was diluted in dried DMF (15 mL); sodium hydride (512 mg, 21.3 mmol) was added in portions and the reaction mixture was stirred at room temperature for 15 minutes. The resulting solution was added slowly at <5° C. to a solution of 5-bromo-6-(4-chlorophenyl)pyrazine-2-carboxylic acid (CAN 960247-80-7; 3.040 g, 9.7 mmol) in dried DMF (15 mL). The reaction mixture was stirred at room temperature for 30 minutes; water was added and the mixture was acidified with 1M HCl solution to pH=2. The mixture was extracted with ethyl acetate; organic phases were combined, dried with MgSO4 and concentrated in vacuo. The crude did still contain starting material and was dissolved again in 15 mL DMF; a solution of cyclopropylmethanol (1.05 g, 1.18 ml, 14.5 mmol) and sodium hydride (582 mg, 14.5 mmol) in 15 mL DMF was added and the mixture was stirred at room temperature for 3 hours. Water was added and the reaction mixture was acidified with 1M HCl solution to pH 2; the product precipitated to give 2.55 g (86%) of the title compound as light yellow solid; MS (ESI) 303.2 (M−H)−.