Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [CH:1]1([CH2:4][O:5][C:6]2[CH:11]=[C:10]([F:12])[C:9]([O:13][CH3:14])=[CH:8][C:7]=2[C:15]2[CH:20]=[CH:19][N:18]=[C:17]3[C:21]([C:33]([OH:35])=O)=[C:22]([CH3:32])[N:23]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:31])([CH3:30])[CH3:29])[C:16]=23)[CH2:3][CH2:2]1.[NH2:36][C@@H:37]1[CH2:42][CH2:41][C@H:40]([NH:43][C:44](=[O:50])[O:45][C:46]([CH3:49])([CH3:48])[CH3:47])[CH2:39][CH2:38]1>>[CH:1]1([CH2:4][O:5][C:6]2[CH:11]=[C:10]([F:12])[C:9]([O:13][CH3:14])=[CH:8][C:7]=2[C:15]2[CH:20]=[CH:19][N:18]=[C:17]3[C:21]([C:33]([NH:36][C@@H:37]4[CH2:42][CH2:41][C@H:40]([NH:43][C:44](=[O:50])[O:45][C:46]([CH3:48])([CH3:47])[CH3:49])[CH2:39][CH2:38]4)=[O:35])=[C:22]([CH3:32])[N:23]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:31])([CH3:29])[CH3:30])[C:16]=23)[CH2:2][CH2:3]1
Reactant: CC(C)(C)OC(=O)N[C@H]1CC[C@@H](N)CC1
Reactant: COc1cc(-c2ccnc3c(C(=O)O)c(C)n(COCC[Si](C)(C)C)c23)c(OCC2CC2)cc1F
Product: COc1cc(-c2ccnc3c(C(=O)N[C@H]4CC[C@@H](NC(=O)OC(C)(C)C)CC4)c(C)n(COCC[Si](C)(C)C)c23)c(OCC2CC2)cc1F

Procedure:
Starting from 7-[2-(cyclopropylmethoxy)-4-fluoro-5-methoxyphenyl]-2-methyl-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrrolo[3,2-b]pyridine-3-carboxylic acid (example D.c7) and commercially available tert-butyl cis-(4-amino-cyclohexyl)-carbamate the title compound is obtained as pale yellow viscous oil.
Reaction SMILES: CN([CH2:4][C:5]1[C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=2[NH:7][CH:6]=1)C.[CH:14]([C:26]([O:28]CC)=[O:27])([C:21]([O:23]CC)=[O:22])[CH2:15][C:16]([O:18]CC)=[O:17].[Na]>C1(C)C=CC=CC=1>[C:21]([C:14]([C:26]([OH:28])=[O:27])([CH2:4][C:5]1[C:9]2[C:8](=[CH:13][CH:12]=[CH:11][CH:10]=2)[NH:7][CH:6]=1)[CH2:15][C:16]([OH:18])=[O:17])([OH:23])=[O:22]
Reactant: CN(C)Cc1c[nH]c2ccccc12
Reactant: CCOC(=O)CC(C(=O)OCC)C(=O)OCC
Agent: [Na]
Solvent: Cc1ccccc1
Product: O=C(O)CC(Cc1c[nH]c2ccccc12)(C(=O)O)C(=O)O

Procedure:
Gramine (17.4 g) and triethyl 1,1,2-ethanetricarboxylate (24.6 g) were suspended in dry toluene. Sodium (0.05 g) was added and the stirred reaction was heated at reflux for six hours. The reaction mixture was cooled, washed with 2N hydrochloric acid (100 ml) and the organic layer was dried (MgSO4) and evaporated. The resulting brown oil was dissolved in ethanol (400 ml) and potassium hydroxide (56 g) was added. The reaction was heated to reflux for six hours, cooled, poured onto ice and acidified to pH1 with 5N hydrochloric acid. The mixture was saturated with sodium sulphate and extracted with ethyl acetate, dried (Na2SO4), filtered and evaporated. The resulting oil was crystallised from 1,2-dichloroethane (400 ml) to yield the title compound, mp 184°-185° C.; found: C, 55.33; H, 4.67; N, 4.32; C14H13NO6. 0.75(H2O) requires C, 55.17; H, 4.80; N, 4.60%.
Reaction SMILES: C(=O)([O-])[O-].[Na+].[Na+].Br[C:8]1[C:9]([NH2:14])=[N:10][CH:11]=[CH:12][CH:13]=1.[C:15]1([C:21]2[S:25][C:24](B(O)O)=[CH:23][CH:22]=2)[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1>O.COCCOC.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>[C:15]1([C:21]2[S:25][C:24]([C:8]3[C:9]([NH2:14])=[N:10][CH:11]=[CH:12][CH:13]=3)=[CH:23][CH:22]=2)[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1
Reactant: OB(O)c1ccc(-c2ccccc2)s1
Reactant: Nc1ncccc1Br
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: COCCOC
Solvent: O
Product: Nc1ncccc1-c1ccc(-c2ccccc2)s1
Temperature: 80 °C
Reaction time: 8 h
Yield: 60.9 %

Procedure:
A mixture of sodium carbonate (799 mg), tetrakis(triphenylphosphine)palladium(0) (218 mg), 3-bromopyridin-2-amine (652 mg) and 5-phenylthiophen-2-ylboronic acid (1000 mg) in water (10 mL) and 1,2-dimethoxyethane (50 mL) was stirred under a nitrogen atmosphere at 80° C. overnight. The reaction mixture was added to water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (579 mg) as a dark yellow solid.
Reaction SMILES: [OH:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[O:8][C:7](=[O:12])[CH:6]=[C:5]2[CH3:13].Cl[C:15]1[C:24]2[C:19](=[CH:20][C:21]([O:27][CH3:28])=[C:22]([O:25][CH3:26])[CH:23]=2)[N:18]=[CH:17][CH:16]=1.O>CN(C)C1C=CN=CC=1.ClC1C=CC=CC=1Cl>[CH3:26][O:25][C:22]1[CH:23]=[C:24]2[C:19](=[CH:20][C:21]=1[O:27][CH3:28])[N:18]=[CH:17][CH:16]=[C:15]2[O:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[O:8][C:7](=[O:12])[CH:6]=[C:5]2[CH3:13]
Reactant: COc1cc2nccc(Cl)c2cc1OC
Reactant: Cc1cc(=O)oc2ccc(O)cc12
Agent: CN(C)c1ccncc1
Solvent: Clc1ccccc1Cl
Solvent: O
Product: COc1cc2nccc(Oc3ccc4oc(=O)cc(C)c4c3)c2cc1OC
Temperature: 140 °C
Reaction time: 3.5 h
Yield: 14.8 %

Procedure:
6-Hydroxy-4-methyl-chromen-2-one (238 mg), 4-chloro-6,7-dimethoxyquinoline (100 mg), and 4-dimethylaminopyridine (165 mg) were suspended in o-dichlorobenzene (5 ml), and the suspension was stirred at 140° C. for 3.5 hr. The reaction solution was cooled to room temperature, water was then added to the reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with water and saturated brine and was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by thin layer chromatography using acetone-chloroform to give the title compound (24 mg, yield 5%).
Reaction SMILES: [IH:1].CS[C:4]1[NH:5][CH2:6][CH2:7][N:8]=1.[CH3:9][NH:10][NH2:11]>C(O)C>[IH:1].[CH3:9][NH:10][NH:11][C:4]1[NH:5][CH2:6][CH2:7][N:8]=1
Reactant: CNN
Reactant: CSC1=NCCN1
Agent: I
Solvent: CCO
Product: CNNC1=NCCN1

Procedure:
A 12.2 g portion of 2-methylthioimidazoline, hydroiodide was dissolved in 30 ml of ethanol. A 5.32 ml portion of methyl hydrazine was added dropwise over 1/2 hour. This mixture was refluxed overnight, then chilled in an ice bath. The solvent was evaporated and the residue triturated with ether and refrigerated overnight. The mxture was evaporated to an oil which was dissolved in methanol and added to 400 ml of ether. The resulting solid was collected, dissolved in hot methanol and poured into 100 ml of ether. The resulting solid was collected, giving 4,5-dihydro-2-(2-methylhydrazino)-1H-imidazole, hydroiodide.
Reaction SMILES: [CH2:1]([N:3]([CH2:12][CH3:13])[C:4]1[CH:11]=[CH:10][C:7]([CH:8]=O)=[CH:6][CH:5]=1)[CH3:2].[C:14]1(=[O:19])[CH2:18][CH2:17][CH2:16][CH2:15]1>[OH-].[K+].CO>[CH2:1]([N:3]([CH2:12][CH3:13])[C:4]1[CH:11]=[CH:10][C:7]([CH:8]=[C:15]2[CH2:16][CH2:17][C:18](=[CH:8][C:7]3[CH:10]=[CH:11][C:4]([N:3]([CH2:1][CH3:2])[CH2:12][CH3:13])=[CH:5][CH:6]=3)[C:14]2=[O:19])=[CH:6][CH:5]=1)[CH3:2]
Reactant: O=C1CCCC1
Reactant: CCN(CC)c1ccc(C=O)cc1
Agent: [K+]
Agent: [OH-]
Solvent: CO
Product: CCN(CC)c1ccc(C=C2CCC(=Cc3ccc(N(CC)CC)cc3)C2=O)cc1

Procedure:
About 110 g of p-diethylaminobenzaldehyde were dissolved in a solution of 80 g of potassium hydroxide in 1000 mL of methanol. About 26 g of cyclopentanone were added with stirring and the reaction mixture was heated under reflux on a steam bath for 3 hr. After chilling in the freezer, a solid precipitate was collected, washed with alcohol and recrystallized from a mixture of alcohol and acetonitrile. The title compound was confirmed by its NMR spectrum. This dye has an ε488 /MW of 188.
Reaction SMILES: Br[C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C:12]2[CH:17]=[C:16]([N:18]3[CH2:23][C@H:22]([CH3:24])[NH:21][C@H:20]([CH3:25])[CH2:19]3)[CH:15]=[CH:14][C:13]=2[O:26][CH3:27])(=[O:10])=[O:9])=[CH:4][CH:3]=1.[NH:28]1[CH2:32][CH2:31][CH2:30][C:29]1=[O:33]>>[CH3:25][C@H:20]1[NH:21][C@@H:22]([CH3:24])[CH2:23][N:18]([C:16]2[CH:15]=[CH:14][C:13]([O:26][CH3:27])=[C:12]([NH:11][S:8]([C:5]3[CH:6]=[CH:7][C:2]([N:28]4[CH2:32][CH2:31][CH2:30][C:29]4=[O:33])=[CH:3][CH:4]=3)(=[O:10])=[O:9])[CH:17]=2)[CH2:19]1
Reactant: COc1ccc(N2C[C@@H](C)N[C@@H](C)C2)cc1NS(=O)(=O)c1ccc(Br)cc1
Reactant: O=C1CCCN1
Product: COc1ccc(N2C[C@@H](C)N[C@@H](C)C2)cc1NS(=O)(=O)c1ccc(N2CCCC2=O)cc1

Procedure:
The title compound (E121) was prepared from 4-bromo-N-[5-(cis-3,5-dimethyl-1-piperazinyl)-2-(methyloxy)phenyl]benzenesulfonamide (E106) and 2-pyrrolidinone using a similar method to that described for Example 23 (E23). MS (ES+) m/e 459 [M+H]+.
Reaction SMILES: [CH3:1][C:2]1[CH:3]=[CH:4][C:5]([NH:12][C:13]2[CH:18]=[CH:17][C:16]([Cl:19])=[C:15]([CH3:20])[C:14]=2[Cl:21])=[C:6]([CH2:8][C:9]([OH:11])=[O:10])[CH:7]=1.[OH-].[K+:23].O>CC(C)=O>[CH3:1][C:2]1[CH:3]=[CH:4][C:5]([NH:12][C:13]2[CH:18]=[CH:17][C:16]([Cl:19])=[C:15]([CH3:20])[C:14]=2[Cl:21])=[C:6]([CH2:8][C:9]([O-:11])=[O:10])[CH:7]=1.[K+:23]
Reactant: Cc1ccc(Nc2ccc(Cl)c(C)c2Cl)c(CC(=O)O)c1
Agent: [K+]
Agent: [OH-]
Solvent: CC(C)=O
Solvent: O
Product: Cc1ccc(Nc2ccc(Cl)c(C)c2Cl)c(CC(=O)[O-])c1
Temperature: 55 °C
Reaction time: 0.17 h

Procedure:
A suspension of 5-Methyl-2-(2′,4′-dichloro-3′-methylanilino)phenylacetic acid (15.42 mmoles) in acetone is heated to reflux temperature and allow to stir for 10 min at ca. 55° C. The resulting solution is slightly cooled to 50° C. and filtered hot over Whatman glasfiber filter. The filter is washed with acetone at 50° C. The filtrate is heated to 50° C. and a mixture of potassium hydroxide 45% (14.65 mmoles) (0.95 eq.) and water is dropwise added over ca. 15 min. The dropping funnel is rinsed with water and acetone. The resulting suspension is stirred at 50° C. for 30 min. The slurry is then allowed to cool to 25° C. over ca. 2 hours. The suspension is stirred over night at room temperature and filtered. The filter cake is washed in three portions. The crystals are dried first for 3 h at 50° C./10 mbar and then further for 17 h at 80° C./10 mbar to yield a white powder, m.p. 315-317° C., 326.9° C., melting enthalpy 29 J/g.
Reaction SMILES: Cl[C:2]1[CH:3]=[C:4]([C:15]([NH:17][CH2:18][C:19]2[C:20](=[O:27])[NH:21][C:22]([CH3:26])=[CH:23][C:24]=2[CH3:25])=[O:16])[C:5]2[C:10]([CH3:11])=[N:9][N:8]([CH:12]([CH3:14])[CH3:13])[C:6]=2[N:7]=1.[CH3:28][N:29]1[CH2:34][CH2:33][N:32]([C:35]2[CH:40]=[CH:39][C:38](B3OC(C)(C)C(C)(C)O3)=[CH:37][N:36]=2)[CH2:31][CH2:30]1.C(=O)([O-])[O-].[Na+].[Na+]>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.CS(C)=O>[CH3:25][C:24]1[CH:23]=[C:22]([CH3:26])[NH:21][C:20](=[O:27])[C:19]=1[CH2:18][NH:17][C:15]([C:4]1[C:5]2[C:10]([CH3:11])=[N:9][N:8]([CH:12]([CH3:14])[CH3:13])[C:6]=2[N:7]=[C:2]([C:38]2[CH:37]=[N:36][C:35]([N:32]3[CH2:31][CH2:30][N:29]([CH3:28])[CH2:34][CH2:33]3)=[CH:40][CH:39]=2)[CH:3]=1)=[O:16]
Reactant: Cc1cc(C)c(CNC(=O)c2cc(Cl)nc3c2c(C)nn3C(C)C)c(=O)[nH]1
Reactant: CN1CCN(c2ccc(B3OC(C)(C)C(C)(C)O3)cn2)CC1
Agent: Cl[Pd](Cl)([P](c1ccccc1)(c1ccccc1)c1ccccc1)[P](c1ccccc1)(c1ccccc1)c1ccccc1
Agent: O=C([O-])[O-]
Agent: [Na+]
Solvent: CS(C)=O
Product: Cc1cc(C)c(CNC(=O)c2cc(-c3ccc(N4CCN(C)CC4)nc3)nc3c2c(C)nn3C(C)C)c(=O)[nH]1

Procedure:
To a 10-mL microwave vial were added 6-chloro-N-[(4,6-dimethyl-2-oxo-1,2-dihydro-3-pyridinyl)methyl]-3-methyl-1-(1-methylethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide (70 mg, 0.180 mmol), 1-methyl-4-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyridinyl]piperazine (71.1 mg, 0.235 mmol), DMSO (2.0 mL) and sodium carbonate (0.271 mL, 0.541 mmol) and the mixture was degassed for 10 min under nitrogen. Bis(triphenylphosphine)palladium(II) chloride (10.13 mg, 0.014 mmol) was added and the contents were sealed. The mixture was irradiated (microwave) at 140° C. for 8 h. The reaction mixture was then quenched with water (5 mL) and filtered. The crude product was washed with water, dried, and then purified via silica gel chromatography (eluent: gradient of 0 to 15% (9:1 MeOH/NH4OH)/DCM). The resulting product was treated with MeOH and 1N HCl. The mixture was concentrated in vacuo, dried under high vacuum and collected as the HCl salt, 42 mg (36%). LCMS E-S (M+H)=529.0 1H NMR (400 MHz, DMSO-d6) δ ppm 1.50 (d, 6 H), 2.13 (s, 3 H), 2.25 (s, 3 H), 2.42 (s, 3 H), 2.81 (d, J=4.55 Hz, 3 H), 3.03-3.21 (m, 2 H), 3.41 (br. s., 2 H), 3.52 (d, J=11.37 Hz, 2 H), 4.39 (d, J=5.05 Hz, 2 H), 4.56 (d, J=14.40 Hz, 2 H), 5.23 (quin, J=6.63 Hz, 1 H), 5.91 (s, 1 H), 7.19 (d, J=9.09 Hz, 1 H), 7.68 (s, 1 H), 8.50 (dd, J=9.09, 2.27 Hz, 1 H), 8.73 (t, J=4.93 Hz, 3 H), 8.98 (d, J=2.02 Hz, 3 H), 10.97-11.21 (m, 2 H)
Reaction SMILES: [C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([OH:13])[CH2:10][C@H:9]1[C:14]([O:16][CH3:17])=[O:15])=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH:18](O)=[O:19].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>O1CCCC1>[C:1]([O:5][C:6]([N:8]1[CH2:12][C@@H:11]([O:13][CH:18]=[O:19])[CH2:10][C@H:9]1[C:14]([O:16][CH3:17])=[O:15])=[O:7])([CH3:4])([CH3:3])[CH3:2]
Reactant: O=CO
Reactant: COC(=O)[C@@H]1C[C@@H](O)CN1C(=O)OC(C)(C)C
Agent: CCOC(=O)N=NC(=O)OCC
Agent: c1ccc(P(c2ccccc2)c2ccccc2)cc1
Solvent: C1CCOC1
Product: COC(=O)[C@@H]1C[C@H](OC=O)CN1C(=O)OC(C)(C)C
Yield: 65.6 %

Procedure:
To a solution of (2S,4R)-1-t-butoxycarbonyl-4-hydroxy-2-methoxycarbonylpyrrolidine (7.36 g: 30 mmole) in tetrahydrofuran (30 ml), formic acid (1.36 ml: 36 mmole), triphenylphosphine (9.44 g: 36 mmole) and diethyl azodicarboxylate (5.67 ml: 36 mmole) are successively added in a nitrogen atmosphere under ice cooling. The mixture is stirred to react for 40 minutes at the same temperature to give (2S,4S)-1-t-butoxycarbonyl-4-formyloxy-2-methoxycarbonylpyrrolidine (5.38 g). Yield: 66%. Colorless crystals.
Reaction SMILES: [C:1]([NH:5][C:6]1[C:15]2[CH:14]=[CH:13][CH:12]=[C:11]([C:16]([NH:18][C:19]3[CH:24]=[C:23]([C:25](=[O:37])[NH:26][C:27]4[CH:32]=[CH:31][CH:30]=[C:29]([C:33]([F:36])([F:35])[F:34])[CH:28]=4)[CH:22]=[CH:21][C:20]=3[CH3:38])=[O:17])[C:10]=2[CH:9]=[CH:8][N:7]=1)([CH3:4])([CH3:3])[CH3:2].[CH2:39]([N:41]1[CH2:46][CH2:45][N:44]([CH2:47]C2C=CC(N)=CC=2C(F)(F)F)[CH2:43][CH2:42]1)[CH3:40].NC1C=CC=CC=1>>[C:1]([NH:5][C:6]1[C:15]2[CH:14]=[CH:13][CH:12]=[C:11]([C:16]([NH:18][C:19]3[CH:24]=[C:23]([C:25](=[O:37])[NH:26][C:27]4[CH:32]=[CH:31][C:30]([CH2:47][N:44]5[CH2:45][CH2:46][N:41]([CH2:39][CH3:40])[CH2:42][CH2:43]5)=[C:29]([C:33]([F:34])([F:35])[F:36])[CH:28]=4)[CH:22]=[CH:21][C:20]=3[CH3:38])=[O:17])[C:10]=2[CH:9]=[CH:8][N:7]=1)([CH3:4])([CH3:3])[CH3:2]
Reactant: CCN1CCN(Cc2ccc(N)cc2C(F)(F)F)CC1
Reactant: Cc1ccc(C(=O)Nc2cccc(C(F)(F)F)c2)cc1NC(=O)c1cccc2c(NC(C)(C)C)nccc12
Solvent: Nc1ccccc1
Product: CCN1CCN(Cc2ccc(NC(=O)c3ccc(C)c(NC(=O)c4cccc5c(NC(C)(C)C)nccc45)c3)cc2C(F)(F)F)CC1
Yield: 12 %

Procedure:
The procedures of Steps (1), (2) and (3) of Example 2 were repeated step by step, except for using 4-((4-ethylpiperazin-1-yl)methyl)-3-(trifluoromethyl)aniline obtained in Step (3) above instead of aniline in Step (1) of Example 2 to obtain the title compound (0.032 g, 12%).
Reaction SMILES: [C:1]([O:5][C:6](=[O:17])[C:7]1[CH:12]=[CH:11][C:10]([CH:13]=[N:14][O:15][CH3:16])=[CH:9][CH:8]=1)([CH3:4])([CH3:3])[CH3:2].C([BH3-])#N.[Na+]>>[C:1]([O:5][C:6](=[O:17])[C:7]1[CH:8]=[CH:9][C:10]([CH2:13][NH:14][O:15][CH3:16])=[CH:11][CH:12]=1)([CH3:4])([CH3:3])[CH3:2]
Reactant: CON=Cc1ccc(C(=O)OC(C)(C)C)cc1
Agent: [BH3-]C#N
Agent: [Na+]
Product: CONCc1ccc(C(=O)OC(C)(C)C)cc1

Procedure:
Reduction of 4-(methoxyimino-methyl)-benzoic acid tert-butyl ester with sodium cyanoborohydride as described in the preparation of compound 1-B gave the title hydroxylamine as a clear oil after chromatography on silica gel (elution hexane-ethyl acetate 8:2) (56% yield). 1HNMR 400 MHz (CDCl3) δ (ppm): 1.59 (9H, s, t-Bu), 3.49 (3H, s, OCH3), 4.09 (2H, s, NCH2), 7.41 (2H, d, J=8.6 Hz, aromatics), 7.96 (2H, d, J=8.6 Hz, aromatics). The hydrochloride salt was obtained as a white solid: mp 130-132° C. Anal. calcd for C13H19NO3—HCl: C, 57.04; H, 7.36; N, 5.12. Found: C, 56.90; H, 7.27; N, 5.00.
Reaction SMILES: [NH2:1][C:2]1[CH:7]=[C:6](Cl)[CH:5]=[CH:4][N:3]=1.C(N(CC)CC)C.Cl.[CH2:17]([O:19][C:20]([NH:22][C:23]1([CH2:29][N:30]2[CH2:35][CH2:34][N:33]([S:36]([C:39]3[CH:44]=[CH:43][C:42]([CH:45]=[CH2:46])=[CH:41][CH:40]=3)(=[O:38])=[O:37])[CH2:32][C:31]2=[O:47])[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]1)=[O:21])[CH3:18]>C(O)C>[NH2:1][C:2]1[CH:7]=[C:6]([N:26]2[CH2:27][CH2:28][C:23]([CH2:29][N:30]3[CH2:35][CH2:34][N:33]([S:36]([C:39]4[CH:40]=[CH:41][C:42]([CH:45]=[CH2:46])=[CH:43][CH:44]=4)(=[O:38])=[O:37])[CH2:32][C:31]3=[O:47])([NH:22][C:20]([O:19][CH2:17][CH3:18])=[O:21])[CH2:24][CH2:25]2)[CH:5]=[CH:4][N:3]=1
Reactant: C=Cc1ccc(S(=O)(=O)N2CCN(CC3(NC(=O)OCC)CCNCC3)C(=O)C2)cc1
Reactant: Nc1cc(Cl)ccn1
Agent: Cl
Solvent: CCN(CC)CC
Solvent: CCO
Product: C=Cc1ccc(S(=O)(=O)N2CCN(CC3(NC(=O)OCC)CCN(c4ccnc(N)c4)CC3)C(=O)C2)cc1
Yield: 20.8 %

Procedure:
2-Amino-4-chloropyridine (132 mg), triethylamine (700 mg) and ethanol (15 ml) were added to 1-{[4-ethoxycarbonylamino-4-piperidinyl]methyl}-4-(4-vinylbenzensulfonyl)-2-piperazinone hydrochloride (250 mg), to react at 155° C. for 20 hours in a sealed tube. The reaction solution was concentrated, a 10% aqueous sodium carbonate solution was added to the residue, the material was extracted with dichloromethane, dried, and concentrated. The resulting residue was dried, concentrated, purified by column chromatography (dichloromethane:10% aqueous ammonia-containing methanol=20:1), and crystallized from dichloromethane-hexane to obtain the title compound (58 mg) as pale yellow crystals.
Reaction SMILES: [NH2:1][CH:2]1[CH:6]([O:7][CH3:8])[CH2:5][N:4]([C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:3]1.[Cl:16][C:17]1[S:21][C:20]([C:22](Cl)=[O:23])=[CH:19][CH:18]=1>>[Cl:16][C:17]1[S:21][C:20]([C:22]([NH:1][CH:2]2[CH:6]([O:7][CH3:8])[CH2:5][N:4]([C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:3]2)=[O:23])=[CH:19][CH:18]=1
Reactant: COC1CN(C(=O)OC(C)(C)C)CC1N
Reactant: O=C(Cl)c1ccc(Cl)s1
Product: COC1CN(C(=O)OC(C)(C)C)CC1NC(=O)c1ccc(Cl)s1

Procedure:
Prepared analogously to Example 1a from tert. Butyl (3SR,4SR)-3-amino-4-methoxy-pyrrolidine-1-carboxylate (prepared analogously to Y. Tsuzuki et al. Tetrahedron Asymm. 2001, 12, 2989) and 5-chlorothiophene-2-carbonyl chloride.
Reaction SMILES: [C:1]([O:9][C:10]1[CH:15]=[CH:14][C:13]([Br:16])=[CH:12][C:11]=1[O:17]C)(=O)C1C=CC=CC=1.[OH-].[Na+].O>C(O)C>[Br:16][C:13]1[CH:14]=[CH:15][C:10]([O:9][CH3:1])=[C:11]([OH:17])[CH:12]=1
Reactant: COc1cc(Br)ccc1OC(=O)c1ccccc1
Agent: [Na+]
Agent: [OH-]
Solvent: CCO
Solvent: O
Product: COc1ccc(Br)cc1O
Yield: 98.3 %

Procedure:
A mixture of 4-bromo-2-methoxyphenyl benzoate (5 g), sodium hydroxide (3 g), water (5 mL) and ethanol (50 mL) is heated at reflux for 1.5 hours. It is then evaporated to low bulk and the resulting residue is treated with water (20 mL) and concentrated hydrochloric acid (10 mL), and extracted with dichloromethane (150 mL). The organic solution is extracted with saturated aqueous sodium bicarbonate solution (3×25 mL), dried over magnesium sulphate and evaporated, to give 5-bromo-2-methoxyphenol (3.25 g), in the form a colorless solid, m.p. 67°-68° C. [Elemental analysis: C,41.5; H,3.5; Br, 37.8%; calculated: C,41.6; H,3.5; Br, 39.5%].
Reaction SMILES: [NH2:1][C:2]1[CH:3]=[CH:4][C:5]([S:52]([CH:55]2[CH2:57][CH2:56]2)(=[O:54])=[O:53])=[C:6]([CH2:8][N:9]([CH3:51])[C:10]([CH:12]([NH:24][C:25]2[CH:26]=[C:27]3[C:32](=[CH:33][C:34]=2[F:35])[C:31]([N:36]([C:44]([O:46][C:47]([CH3:50])([CH3:49])[CH3:48])=[O:45])[C:37](=[O:43])[O:38][C:39]([CH3:42])([CH3:41])[CH3:40])=[N:30][CH:29]=[CH:28]3)[C:13]2[CH:18]=[CH:17][C:16]([C@@H:19]([CH3:22])[CH2:20][OH:21])=[C:15]([CH3:23])[CH:14]=2)=[O:11])[CH:7]=1.[C:58](Cl)(Cl)=[O:59]>C(#N)C.ClCCl>[C:39]([O:38][C:37]([N:36]([C:31]1[C:32]2[C:27](=[CH:26][C:25]([NH:24][C@H:12]3[C:10](=[O:11])[N:9]([CH3:51])[CH2:8][C:6]4[CH:7]=[C:2]([CH:3]=[CH:4][C:5]=4[S:52]([CH:55]4[CH2:56][CH2:57]4)(=[O:54])=[O:53])[NH:1][C:58](=[O:59])[O:21][CH2:20][C@H:19]([CH3:22])[C:16]4[CH:17]=[CH:18][C:13]3=[CH:14][C:15]=4[CH3:23])=[C:34]([F:35])[CH:33]=2)[CH:28]=[CH:29][N:30]=1)[C:44](=[O:45])[O:46][C:47]([CH3:48])([CH3:49])[CH3:50])=[O:43])([CH3:41])([CH3:40])[CH3:42]
Reactant: O=C(Cl)Cl
Reactant: Cc1cc(C(Nc2cc3ccnc(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)c3cc2F)C(=O)N(C)Cc2cc(N)ccc2S(=O)(=O)C2CC2)ccc1[C@@H](C)CO
Solvent: CC#N
Solvent: ClCCl
Product: Cc1cc2ccc1[C@@H](C)COC(=O)Nc1ccc(S(=O)(=O)C3CC3)c(c1)CN(C)C(=O)[C@@H]2Nc1cc2ccnc(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)c2cc1F
Temperature: 0 °C
Reaction time: 0.67 h
Yield: 36.4 %

Procedure:
To a solution of 26A (80 mg, 0.099 mmol) in acetonitrile (6 mL) and dichloromethane (3 mL) at 0° C., was added phosgene solution (20% in toluene, 0.063 mL, 0.119 mmol) dropwise. The mixture was stirred at 0° C. for 40 min, then at rt for 30 min. Extra phosgene was removed by bubbling Ar though the reaction mixture (30 min). The mixture was added dropwise via syringe pump into a solution of TEA (0.111 mL, 0.794 mmol) in dichloromethane (40 ml) at rt over 3.0 h. The solution was stirred at rt overnight, quenched with 0.5 N HCl, extracted with CH2Cl2. The organic layer was washed with water and dried over sodium sulfate, then concentrated. The crude residue was purified by flash chromatography (30-100% EtOAc/hexanes) to give a mixture of diastereoisomers (70 mg, 0.084 mmol, 85% yield). The diastereomers were separated by a prep chiral HPLC (R,R-Whelk-O column 21.1×250 mm) to give 26B (30 mg, 0.036 mmol, 42.9% yield). MS (ESI) m/z: [M+1]+. 19F NMR (376 MHz, CDCl3) d ppm −128.71 (s, 1F).
Reaction SMILES: [CH2:1]([O:3][C:4](=[O:15])[C:5](=O)[C:6]([CH:11]([CH3:13])[CH3:12])=[CH:7][N:8](C)C)C.Cl.[Cl:17][C:18]1[CH:23]=[CH:22][CH:21]=[C:20]([Cl:24])[C:19]=1[NH:25]N.Cl>CCO>[CH3:1][O:3][C:4]([C:5]1[N:25]([C:19]2[C:18]([Cl:17])=[CH:23][CH:22]=[CH:21][C:20]=2[Cl:24])[N:8]=[CH:7][C:6]=1[CH:11]([CH3:13])[CH3:12])=[O:15]
Reactant: NNc1c(Cl)cccc1Cl
Reactant: CCOC(=O)C(=O)C(=CN(C)C)C(C)C
Agent: Cl
Solvent: CCO
Product: COC(=O)c1c(C(C)C)cnn1-c1c(Cl)cccc1Cl
Temperature: 25 °C
Reaction time: 2 h
Yield: 52 %

Procedure:
To a solution of 4-methyl-2-oxo-pentanoic acid methyl ester (3.8 g, 26 mmol) in N,N-dimethylformamide dimethyl acetal (7 mL, 52 mmol) is added p-toluenesulfonic acid monohydrate (30 mg) and the mixture is stirred at 80° C. overnight. The reaction mixture is concentrated under reduced pressure to give 3-isopropyl-4-dimethylamino-2-oxo-but-3-enoic acid ethyl ester as an orange oil. To a solution of 3-isopropyl-4-dimethylamino-2-oxo-but-3-enoic acid ethyl ester and 2,6-dichlorophenylhydrazine hydrochloride (2.8 g, 13 mmol) in EtOH (40 mL) is added concentrated HCl (0.5 mL). The mixture is stirred at ambient temperature for 2 h followed by refluxing overnight. The reaction mixture is concentrated and the residue is partitioned between EtOAc and 1N HCl. The organic phase is dried (Na2SO4) and concentrated to a residue. The residue is purified by column chromatography (0-15% EtOAc in hexanes) to give the title compound as an oil (2.2 g, 52%). 1H NMR (CDCl3): δ 7.76 (s, 1H), 7.43 (d, 2H), 7.34 (dd, 1H), 3.75 (s, 3H), 3.48 (m, 1H), 1.32 (d, 6H).