Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [NH2:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[N:5][C:6](Cl)=[CH:7][CH:8]=2)[N:3]=1.[CH3:13][C:14]1[CH:15]=[C:16]([OH:20])[CH:17]=[CH:18][CH:19]=1.[OH-].[K+]>C(OCC)(=O)C>[NH2:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[N:5][C:6]([O:20][C:16]3[CH:17]=[CH:18][CH:19]=[C:14]([CH3:13])[CH:15]=3)=[CH:7][CH:8]=2)[N:3]=1
Reactant: Cc1cccc(O)c1
Reactant: Nc1ccc2ccc(Cl)nc2n1
Agent: [K+]
Agent: [OH-]
Solvent: CCOC(C)=O
Product: Cc1cccc(Oc2ccc3ccc(N)nc3n2)c1
Temperature: 4 °C
Yield: 35.8 %

Procedure:
The procedure is similar to that described in Example 4, but starting with 2-amino-7-chloro-1,8-naphthyridine (17.95 g), 3-methylphenol (43.2 g) and potassium hydroxide pellets (13.2 g; 85% purity). After treatment with caustic soda and washing, the product produced (21.6 g; m.p. 148° C.) is dissolved in boiling ethyl acetate (200 cc). After 18 hours' cooling at 4° C., the crystallised solid is separated by filtration, washed with ethyl acetate (10 cc) and dried at 40° C. under reduced pressure (0.067 kPa). 2-amino-7-(3-methylphenoxy)-1,8-naphthyridine (9 g) is produced, m.p. 152° C. EXAMPLE 41
Reaction SMILES: [NH:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]1=[O:7].[CH2:8]([NH:15][C:16]([C:18]1[S:22][C:21](Br)=[N:20][C:19]=1[CH3:24])=[O:17])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1>>[CH2:8]([NH:15][C:16]([C:18]1[S:22][C:21]([N:1]2[CH:6]=[CH:5][CH:4]=[CH:3][C:2]2=[O:7])=[N:20][C:19]=1[CH3:24])=[O:17])[C:9]1[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=1
Reactant: O=c1cccc[nH]1
Reactant: Cc1nc(Br)sc1C(=O)NCc1ccccc1
Product: Cc1nc(-n2ccccc2=O)sc1C(=O)NCc1ccccc1
Yield: 48 %

Procedure:
Following the procedure as described in Example 3, making variations only as required to use pyridin-2(1H)-one in place of 4-aminopyridin-2(1H)-one to react with N-benzyl-2-bromo-4-methylthiazole-5-carboxamide, the title compound was obtained as a colorless solid in 48% yield: mp 180-182° C. (hexane/ethyl acetate); 1H NMR (300 MHz, CDCl3) δ 8.83 (t, J=5.9 Hz, 1H), 8.71 (dd, J=7.3, 1.7 Hz, 1H), 7.65-7.59 (m, 1H), 7.37-7.18 (m, 5H), 6.74 (d, J=9.3 Hz, 1H), 6.60-6.55 (m, 1H), 4.39 (d, J=5.9 Hz, 2H), 2.56 (s, 3H); 13C NMR (75 MHz, CDCl3) δ 167.9, 162.0, 161.6, 154.1, 150.2, 139.9, 132.6, 128.7, 127.7, 127.2, 123.6, 104.4, 98.0, 43.1, 17.5; (ES+) m/z 326.1 (M+1).
Reaction SMILES: Cl[C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1[N+:9]([O-:11])=[O:10].[NH:12]1[CH2:17][CH2:16][CH:15]([CH2:18][CH2:19][N:20]2[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21]2)[CH2:14][CH2:13]1>C(#N)C>[Cl:8][C:5]1[CH:6]=[CH:7][C:2]([N:12]2[CH2:13][CH2:14][CH:15]([CH2:18][CH2:19][N:20]3[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21]3)[CH2:16][CH2:17]2)=[C:3]([N+:9]([O-:11])=[O:10])[CH:4]=1
Reactant: O=[N+]([O-])c1cc(Cl)ccc1Cl
Reactant: C1CCN(CCC2CCNCC2)CC1
Solvent: CC#N
Product: O=[N+]([O-])c1cc(Cl)ccc1N1CCC(CCN2CCCCC2)CC1
Temperature: 175 °C
Yield: 90 %

Procedure:
A mixture of 0.576 g (3.00 mmol) of 2,5-dichloronitrobezene and 0.589 g (3.00 mmol) of 1-(2-piperidin-4-yl-ethyl)-piperidine in acetonitrile (5 mL) are heated at 175° C. in a microwave reactor for 30 minutes. The mixture is cooled to room temperature and concentrated under reduced pressure to provide 0.95 g (90% yield) of 1-(4-chloro-2-nitro-phenyl)-4-(2-piperidin-1-yl-ethyl)-piperidine.
Reaction SMILES: [C:1]([NH:4][C:5]1[C:6]([I:20])=[C:7]([C:11]([I:19])=[C:12]([NH:15][C:16](=[O:18])[CH3:17])[C:13]=1[I:14])[C:8](Cl)=[O:9])(=[O:3])[CH3:2].Cl.[CH2:22]([O:24][C:25](=[O:32])[C@H:26]([CH2:28][CH:29]([CH3:31])[CH3:30])[NH2:27])[CH3:23]>>[CH2:22]([O:24][C:25](=[O:32])[C@H:26]([CH2:28][CH:29]([CH3:31])[CH3:30])[NH:27][C:8](=[O:9])[C:7]1[C:6]([I:20])=[C:5]([NH:4][C:1](=[O:3])[CH3:2])[C:13]([I:14])=[C:12]([NH:15][C:16](=[O:18])[CH3:17])[C:11]=1[I:19])[CH3:23]
Reactant: CC(=O)Nc1c(I)c(NC(C)=O)c(I)c(C(=O)Cl)c1I
Reactant: CCOC(=O)[C@@H](N)CC(C)C
Agent: Cl
Product: CCOC(=O)[C@H](CC(C)C)NC(=O)c1c(I)c(NC(C)=O)c(I)c(NC(C)=O)c1I

Procedure:
Following the procedure of example 13, 48 g (64%) of this product was synthesized from 63.2 g (0.1 Mol) 3,5-diacetamido-2,4,6-triiodobenzoyl chloride and 29.4 g (0.15 Mol) L-leucine ethyl ester hydrochloride.
Reaction SMILES: [Cl:1][C:2]1[CH:3]=[N:4][NH:5][C:6](=[O:9])[C:7]=1[Cl:8].[Br:10]Br>O>[Br:10][C:3]1[C:2]([Cl:1])=[C:7]([Cl:8])[C:6](=[O:9])[NH:5][N:4]=1
Reactant: O=c1[nH]ncc(Cl)c1Cl
Reactant: BrBr
Solvent: O
Product: O=c1[nH]nc(Br)c(Cl)c1Cl
Temperature: 180 °C

Procedure:
4,5-dichloro-1H-pyridazin-6-one (1.95 g, 11.8 mmol) and bromine (0.73 ml, 14.2 mmol) are suspended in water (10 ml) and the mixture heated under microwave irradiation to 180° C. for 30 min. The resulting reaction mixture is filtered and the crude solid obtained washed thoroughly with water, then DCM, to yield 3-bromo-4,5-dichloro-1H-pyridazin-6-one, 2.06 g, as a white solid (71.5% yield).
Reaction SMILES: [F:1][C:2]([F:9])([F:8])[C:3]1[CH:7]=[CH:6][NH:5][N:4]=1.[N+]([O-])([O-])=O.[NH4+].[Ce].[Ce].[I:17]I>C(#N)C>[I:17][C:7]1[C:3]([C:2]([F:9])([F:8])[F:1])=[N:4][NH:5][CH:6]=1
Reactant: II
Reactant: FC(F)(F)c1cc[nH]n1
Agent: O=[N+]([O-])[O-]
Agent: [Ce]
Agent: [NH4+]
Solvent: CC#N
Product: FC(F)(F)c1n[nH]cc1I
Yield: 160.9 %

Procedure:
An acetonitrile solution (30 ml) of 3-trifluoromethyl-1H-pyrazole (5.0 g), dicerium ammonium nitrate (10.0 g) and iodine (5.6 g) was refluxed for 1 hour. After cooling, the reaction solution was washed with saturated aqueous solution of sodium thiosulfate and saturated aqueous solution of sodium chloride. After drying the organic layer with magnesium sulfate, the solvent was distilled off under the reduced pressure to obtain 4-iodo-3-trifluoromethyl-1H-pyrazole (9.3 g).
Reaction SMILES: [OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[CH2:13][CH2:12][N:11]([C:14]([O:16][CH2:17][C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[O:15])[CH2:10][CH:9]2[O:24][CH2:25][C:26]2[CH:27]=[CH:28][C:29]3[O:34][CH2:33][C:32](=[O:35])[N:31]([CH2:36][CH2:37][CH2:38][O:39][CH3:40])[C:30]=3[CH:41]=2)=[CH:4][CH:3]=1.[C:42]([O:46][C:47](=[O:52])[NH:48][CH2:49][CH2:50]O)([CH3:45])([CH3:44])[CH3:43].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>O1CCCC1>[C:42]([O:46][C:47]([NH:48][CH2:49][CH2:50][O:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[CH2:13][CH2:12][N:11]([C:14]([O:16][CH2:17][C:18]3[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=3)=[O:15])[CH2:10][CH:9]2[O:24][CH2:25][C:26]2[CH:27]=[CH:28][C:29]3[O:34][CH2:33][C:32](=[O:35])[N:31]([CH2:36][CH2:37][CH2:38][O:39][CH3:40])[C:30]=3[CH:41]=2)=[CH:4][CH:3]=1)=[O:52])([CH3:45])([CH3:44])[CH3:43]
Reactant: COCCCN1C(=O)COc2ccc(COC3CN(C(=O)OCc4ccccc4)CCC3c3ccc(O)cc3)cc21
Reactant: CC(C)(C)OC(=O)NCCO
Agent: c1ccc(P(c2ccccc2)c2ccccc2)cc1
Solvent: C1CCOC1
Product: COCCCN1C(=O)COc2ccc(COC3CN(C(=O)OCc4ccccc4)CCC3c3ccc(OCCNC(=O)OC(C)(C)C)cc3)cc21
Temperature: 25 °C
Reaction time: 22 h

Procedure:
A solution of 1.197 g of benzyl 4-(4-hydroxyphenyl)-3-[4-(3-methoxypropyl)-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethoxy]piperidine-1-carboxylate (Example 166c), 0.506 ml of tert-butyl(2-hydroxyethyl)carbamate and 0.848 g of triphenylphosphine in 10 ml of tetrahydrofuran at 0° C. is admixed dropwise with 0.66 ml of diisopropyl azodicarbonate. The reaction mixture is warmed to room temperature, stirred further for 22 hours and subsequently concentrated by evaporation. The title compound is obtained as a yellow oil from the residue by means of flash chromatography (SiO2 60F). Rf=0.50 (2:1 EtOAc-heptane); Rt=5.39.
Reaction SMILES: [C:1]([O:7][CH2:8][N:9]1[C:13]2[N:14]=[CH:15][N:16]=[C:17]([C:18]3[CH:19]=[N:20][N:21](/[C:23](/[CH:28]4[CH2:32][CH2:31][CH2:30][CH2:29]4)=[CH:24]\[C:25]([NH2:27])=[O:26])[CH:22]=3)[C:12]=2[CH:11]=[CH:10]1)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3].[H][H]>C(Cl)Cl.C(O)C(F)(F)F>[C:1]([O:7][CH2:8][N:9]1[C:13]2[N:14]=[CH:15][N:16]=[C:17]([C:18]3[CH:19]=[N:20][N:21]([C@H:23]([CH:28]4[CH2:32][CH2:31][CH2:30][CH2:29]4)[CH2:24][C:25]([NH2:27])=[O:26])[CH:22]=3)[C:12]=2[CH:11]=[CH:10]1)(=[O:6])[C:2]([CH3:4])([CH3:5])[CH3:3]
Reactant: [H][H]
Reactant: CC(C)(C)C(=O)OCn1ccc2c(-c3cnn(/C(=C\C(N)=O)C4CCCC4)c3)ncnc21
Solvent: OCC(F)(F)F
Solvent: ClCCl
Product: CC(C)(C)C(=O)OCn1ccc2c(-c3cnn([C@@H](CC(N)=O)C4CCCC4)c3)ncnc21
Temperature: 50 °C
Reaction time: 20 h

Procedure:
A solution of (4-{1-[(1Z)-3-amino-1-cyclopentyl-3-oxoprop-1-en-1-yl]-1H-pyrazol-4-yl}-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate (10, 215 mg) in a mixture of methylene chloride (CH2Cl2, 12.5 mL) and trifluoroethanol (CF3CH2OH, 0.25 mL) in a pressure glass tube was treated with the catalyst Rh(COD)(SSRR-TangPhos)BF4 (8.8 mg) under nitrogen before the reaction mixture was pressurized with hydrogen gas to 40 bar pressure. The reaction mixture was stirred at 50° C. under this hydrogen pressure for 20 h. When HPLC analysis showed that the substrate was completely consumed, the reaction mixture was cooled down to room temperature. The enantiomeric excess of the reaction mixture was determined to be 88% ee (94% of the first peak, (S)-11; 6% of the second peak, (R)-11) by chiral HPLC analysis. The reaction mixture was filtered through a thin silica gel pad and the pad was washed with methylene chloride (5 mL). The filtrate was then concentrated under reduced pressure to dryness. The resultant foamy solid (180 mg) was charged with a mixture of heptane (5 mL) and ethyl acetate (EtOAc, 5 mL). White solids precipitated out upon stirring at 20° C. The slurry was stirred at 20° C. for 16 h. The solid was collected by filtration and the chiral HPLC analysis for the collected solids (52 mg) showed a 66.0% of enantiomeric excess favoring the first peak (83.0% of the first peak, (S)-11; 17.0% of the second peak, (R)-11). The filtrate obtained was then evaporated to dryness. The resultant oil (108 mg) was analyzed by chiral HPLC and showed a 99.6% of enantiomeric excess favoring the first peak (99.83% of the first peak, (S)-11; 0.17% of the second peak, (R)-11). This result showed in principle that the optical purity of the asymmetric hydrogenation product can be significantly enhanced by selective removal of the minor enantiomer by precipitation of the solid using a suitable solvent system such as ethyl acetate/heptane as described.
Reaction SMILES: [NH:1]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:4](=O)[C:2]1=[O:3].[C:12]([NH:20][NH2:21])(=[O:19])[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1>>[CH2:2]([N:1]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)/[C:4](=[N:21]/[NH:20][C:12](=[O:19])[C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)/[C:2]1=[O:3])[CH2:4][CH2:6][CH3:7]
Reactant: O=C1Nc2ccccc2C1=O
Reactant: NNC(=O)c1ccccc1
Product: CCCCN1C(=O)/C(=N\NC(=O)c2ccccc2)c2ccccc21
Yield: 65.3 %

Procedure:
The title compound was prepared as a yellow solid, using isatin 5 and benzhydrazide according to the synthetic method D. The resulting solid was washed with ethanol. Yield: 65.3%. 1H NMR (DMSO-d6): δ 0.95 (t, J=7.5 Hz, 3H), 1.36-1.41 (m, 2H), 1.64-1.69 (m, 2H), 3.78 (t, J=7.2 Hz, 2H), 7.19 (t, Hz, J=7.5 Hz, 1H), 7.24 (d, J=7.8 Hz, 1H), 7.49 (td, J=1.2 Hz, J=7.8 Hz, 1H), 7.60-7.73 (m, 4H), 7.90-7.92 (m, 2H), 13.90 (br s, 1H). 13C NMR (DMSO-d6): δ 14.06 (CH3), 20.04 (CH2), 29.56 (CH2), 39.49 (CH2), 110.69 (CH), 119.66 (C), 121.26 (CH), 123.69 (CH), 127.88 (CH), 129.67 (CH), 132.22 (CH), 132.43 (C), 133.40 (CH), 137.40 (C), 143.43 (C═N), 161.58 (C═O), 163.34 (C═O). HRMS (ES+) calcd for C19H20N3O2 (M+H+), m/e, 322.1548. found, 322.1550.
Reaction SMILES: CC(C)([O-])C.[K+].Cl.[Cl:8][C:9]1[CH:10]=[C:11]2[C:16](=[CH:17][CH:18]=1)[CH2:15][NH:14][CH2:13][CH2:12]2.Br[C:20]1[CH:25]=[C:24]([CH3:26])[C:23]([NH:27][C:28](=[O:34])[CH2:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[C:22]([CH3:35])[CH:21]=1>C1(C)C=CC=CC=1>[Cl:8][C:9]1[CH:10]=[C:11]2[C:16](=[CH:17][CH:18]=1)[CH2:15][N:14]([C:20]1[CH:25]=[C:24]([CH3:26])[C:23]([NH:27][C:28](=[O:34])[CH2:29][C:30]([CH3:31])([CH3:32])[CH3:33])=[C:22]([CH3:35])[CH:21]=1)[CH2:13][CH2:12]2
Reactant: Cc1cc(Br)cc(C)c1NC(=O)CC(C)(C)C
Reactant: Clc1ccc2c(c1)CCNC2
Agent: CC(C)(C)[O-]
Agent: Cl
Agent: [K+]
Solvent: Cc1ccccc1
Product: Cc1cc(N2CCc3cc(Cl)ccc3C2)cc(C)c1NC(=O)CC(C)(C)C
Temperature: 25 °C
Reaction time: 0.25 h

Procedure:
Bis(dibenzylidineacetone)palladium (2 mg, 0.0035 mmol) and (2′-dicyclohexyl phosphanyl-biphenyl-2-yl)-dimethylamine (3.3 mg, 0.0084 mmol) were added to dry toluene (5 mL purged with argon) and stirred for 15 minutes under argon. Potassium tert-butoxide (188 mg, 1.7 mmol), 6-chloro-1,2,3,4-tetrahydro isoquinoline hydrochloride salt (165 mg, 0.8 mmol), and N-(4-bromo-2,6-dimethylphenyl)-3,3-dimethylbutanamide (200 mg, 0.67 mmol) were then added, and the reaction mixture was stirred at 80° C. overnight. The reaction mixture was then cooled to room temperature and filtered through silica gel. Purification by preparative thin layer chromatography afforded the title compound as a solid.
Reaction SMILES: Cl[C:2]1[C:7]([N+:8]([O-:10])=[O:9])=[CH:6][C:5]([Cl:11])=[CH:4][N:3]=1.[CH:12]1([C:18]2[NH:19][CH:20]=[CH:21][N:22]=2)[CH2:17][CH2:16][CH2:15][CH2:14][CH2:13]1.[I-].[Na+]>CN(C)C=O>[Cl:11][C:5]1[CH:6]=[C:7]([N+:8]([O-:10])=[O:9])[C:2]([N:19]2[CH:20]=[CH:21][N:22]=[C:18]2[CH:12]2[CH2:17][CH2:16][CH2:15][CH2:14][CH2:13]2)=[N:3][CH:4]=1
Reactant: O=[N+]([O-])c1cc(Cl)cnc1Cl
Reactant: c1c[nH]c(C2CCCCC2)n1
Agent: [I-]
Agent: [Na+]
Solvent: CN(C)C=O
Product: O=[N+]([O-])c1cc(Cl)cnc1-n1ccnc1C1CCCCC1
Temperature: 160 °C
Reaction time: 15.5 h
Yield: 33.9 %

Procedure:
2,5-Dichloro-3-nitropyridine 100 g, 2-cyclohexylimidazole 1.56 g, sodium iodide 500 mg and N,N-dimethylformamide 25 mL were mixed and stirred at 160° C. for 15.5 hours. The reaction liquid was poured in ice water and extracted with diethyl ether. The organic layer was washed successively with water and saturated brine, and dried over anhydrous magnesium sulfate. Distilling the solvent off under reduced pressure, the residue was subjected to silica gel chromatography (hexane:ethyl acetate=2:1) to provide 1.08 g of the title compound.
Reaction SMILES: [C:1]1([C:7]2[N:8]=[CH:9][NH:10][CH:11]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:12](Cl)([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)([C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.O>CN(C=O)C>[C:1]1([C:7]2[N:8]=[CH:9][N:10]([C:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)[C:19]3[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=3)[CH:11]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1
Reactant: ClC(c1ccccc1)(c1ccccc1)c1ccccc1
Reactant: c1ccc(-c2c[nH]cn2)cc1
Solvent: CN(C)C=O
Solvent: O
Product: c1ccc(-c2cn(C(c3ccccc3)(c3ccccc3)c3ccccc3)cn2)cc1
Temperature: 25 °C
Reaction time: 15 h
Yield: 72.6 %

Procedure:
To a solution of 4-phenylimidazole (500 mg, 3.47 mmol) in 5 mL DMF, were added TEA (508 μL, 3.64 mmol) and trityl chloride (1.06 g, 3.82 mmol). The mixture was stirred at rt for 15 h, then was poured into 50 mL H2O. The precipitate was collected by filtration and sucked dry, then was suspended in 20 mL Et2O. The suspension was filtered, rinsed with 5 mL Et2O, then vacuum dried to afford 974 mg of Intermediate 8.1 as a white solid.
Reaction SMILES: [C:1]([C:3]1([C:6]([OH:8])=O)[CH2:5][CH2:4]1)#[N:2].C(N1C=CN=C1)(N1C=CN=C1)=O.[CH3:21][C:22]1[N:26]([CH:27]2[CH2:33][C@H:32]3[N:34]([CH2:35][CH2:36][C:37]4([C:43]5[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=5)[CH2:42][CH2:41][NH:40][CH2:39][CH2:38]4)[C@H:29]([CH2:30][CH2:31]3)[CH2:28]2)[C:25]2[CH:49]=[CH:50][CH:51]=[CH:52][C:24]=2[N:23]=1>ClCCCl>[CH3:21][C:22]1[N:26]([CH:27]2[CH2:33][C@H:32]3[N:34]([CH2:35][CH2:36][C:37]4([C:43]5[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=5)[CH2:38][CH2:39][N:40]([C:6]([C:3]5([C:1]#[N:2])[CH2:5][CH2:4]5)=[O:8])[CH2:41][CH2:42]4)[C@H:29]([CH2:30][CH2:31]3)[CH2:28]2)[C:25]2[CH:49]=[CH:50][CH:51]=[CH:52][C:24]=2[N:23]=1
Reactant: N#CC1(C(=O)O)CC1
Reactant: Cc1nc2ccccc2n1C1C[C@H]2CC[C@@H](C1)N2CCC1(c2ccccc2)CCNCC1
Agent: O=C(n1ccnc1)n1ccnc1
Solvent: ClCCCl
Product: Cc1nc2ccccc2n1C1C[C@H]2CC[C@@H](C1)N2CCC1(c2ccccc2)CCN(C(=O)C2(C#N)CC2)CC1

Procedure:
To a solution of 1-cyanocyclopropane-carboxylic acid (38.9 mg, 0.351 mmole) in 1 ml of DCE was added carbonyldiimidazole (38.0 mg, 0.234 mmole) and the mixture was stirred until gas evolution stopped. 2-Methyl-1-{(1R,5S)-8-[2-(4-phenyl-4-piperidinyl)ethyl]-8-azabicyclo[3.2.1]oct-3-yl}-1H-benzimidazole (50.0 mg, 0.117 mmole) was added and the resulting mixture was stirred overnight. The solvent was evaporated and the reaction mixture was flashed on silica using a gradient of 1-8% MeOH in CHCl3 to afford 1-[(4-{2-[(1R,5S)-3-(2-methyl-1H-benzimidazol-1-yl)-8-azabicyclo[3.2.1]oct-8-yl]ethyl}-4-phenyl-1-piperidinyl)carbonyl]cyclopropanecarbonitrile. MS ES+ 522 (M+H). 1H NMR (300 MHz, chloroform-d) δ ppm 1.6 (m, J=43.1 Hz, 6H), 1.9 (d, J=25.3 Hz, 10H), 2.4 (m, J=10.0 Hz, 4H), 2.6 (s, 3H), 3.3 (m, 3H), 3.5 (m, 1H), 4.1 (m, 2H), 4.7 (m, 1H), 7.3 (m, 8H), 7.7 (m, 1H).
Reaction SMILES: Cl.Cl.[CH3:3][C@H:4]1[C:12]2[C:11]([N:13]3[CH2:18][CH2:17][NH:16][CH2:15][CH2:14]3)=[N:10][CH:9]=[N:8][C:7]=2[C@H:6]([OH:19])[CH2:5]1.[C:20]([O:24][C:25]([N:27]([CH:40]([CH3:42])[CH3:41])[CH2:28][C@H:29]([C:33]1[CH:38]=[CH:37][C:36]([Cl:39])=[CH:35][CH:34]=1)[C:30](O)=[O:31])=[O:26])([CH3:23])([CH3:22])[CH3:21].CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(Cl)Cl>[Cl:39][C:36]1[CH:37]=[CH:38][C:33]([C@H:29]([C:30]([N:16]2[CH2:15][CH2:14][N:13]([C:11]3[C:12]4[C@H:4]([CH3:3])[CH2:5][C@@H:6]([OH:19])[C:7]=4[N:8]=[CH:9][N:10]=3)[CH2:18][CH2:17]2)=[O:31])[CH2:28][N:27]([CH:40]([CH3:41])[CH3:42])[C:25](=[O:26])[O:24][C:20]([CH3:22])([CH3:21])[CH3:23])=[CH:34][CH:35]=1
Reactant: CC(C)N(C[C@@H](C(=O)O)c1ccc(Cl)cc1)C(=O)OC(C)(C)C
Reactant: C[C@@H]1C[C@@H](O)c2ncnc(N3CCNCC3)c21
Agent: CN(C)C(On1nnc2ccccc21)=[N+](C)C
Agent: Cl
Agent: F[P-](F)(F)(F)(F)F
Solvent: CCN(C(C)C)C(C)C
Solvent: ClCCl
Product: CC(C)N(C[C@@H](C(=O)N1CCN(c2ncnc3c2[C@H](C)C[C@H]3O)CC1)c1ccc(Cl)cc1)C(=O)OC(C)(C)C
Temperature: 25 °C
Reaction time: 1 h
Yield: 69.3 %

Procedure:
A solution of (5R,7R)-5-methyl-4-(piperazin-1-yl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-7-ol dihydrochloride (2.92 g, 9.51 mmol) and (S)-3-(tert -butoxycarbonyl(isopropyl)amino)-2-(4-chlorophenyl)propanoic acid (3.25 g, 9.51 mmol) in DCM (40 mL) and DIEA (5.0 mL, 28.7 mmol) was stirred at room temperature for 10 minutes. HBTU (3.61 g, 9.51 mmol) was added to the mixture. The mixture was stirred at room temperature for 1 hour. The solvent was removed, and the residue was dissolved in ethyl acetate (500 mL) and washed with water (6×100 mL). The organic phase was dried and concentrated. The residue was subject to column chromatography, eluted by EtOAc-DCM/MeOH (20:1) to give tert-butyl (S)-2-(4-chlorophenyl)-3-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-3-oxopropyl(isopropyl)carbamate (3.68 g, 69%.) LC/MS (APCI+) m/z 558.2 [M+H]+.
Reaction SMILES: [CH:1]([C:4]1[CH:10]=[CH:9][C:7]([NH2:8])=[CH:6][CH:5]=1)([CH3:3])[CH3:2].Cl[C:12]([O:14][C:15]1[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[CH:17][CH:16]=1)=[O:13]>C(Cl)Cl.N1C=CC=CC=1>[N+:21]([C:18]1[CH:17]=[CH:16][C:15]([O:14][C:12](=[O:13])[NH:8][C:7]2[CH:9]=[CH:10][C:4]([CH:1]([CH3:3])[CH3:2])=[CH:5][CH:6]=2)=[CH:20][CH:19]=1)([O-:23])=[O:22]
Reactant: CC(C)c1ccc(N)cc1
Reactant: O=C(Cl)Oc1ccc([N+](=O)[O-])cc1
Solvent: c1ccncc1
Solvent: ClCCl
Product: CC(C)c1ccc(NC(=O)Oc2ccc([N+](=O)[O-])cc2)cc1
Reaction time: 0.01 h
Yield: 95.1 %

Procedure:
To a solution of 4-isopropylaniline (3.02 g, 22.3 mmol) in DCM (40 mL) and pyridine (10 mL) was added 4-nitrophenyl chloroformate (4.09 g, 20.3 mmol) portionwise with stirring over ˜30 sec with brief ice-bath cooling. After stirring at rt for 1 h, the homogeneous solution was diluted with DCM (100 mL) and washed with 0.6 M HCl (1×250 mL), 0.025 M HCl (1×400 mL), water (1×100 mL), and 1 M NaHCO3 (1×100 mL). The organic layer was dried (Na2SO4) and concentrated to give the title compound as a light peach-colored solid (5.80 g, 95%). 1H-NMR (300 MHz, CDCl3) δ 8.28 (m, 2H), 7.42-7.32 (m, 4H), 7.22 (m, 2H), 6.93 (br s, 1H), 2.90 (h, J=6.9 Hz, 1H), 1.24 (d, J=6.9 Hz, 6H). LC/MS (ESI): calcd mass 300.1, 601.3 (2MH)+.
Reaction SMILES: [F:1][S:2]([F:15])([F:14])([F:13])([F:12])[C:3]1[CH:11]=[CH:10][C:6]([C:7](Cl)=[O:8])=[CH:5][CH:4]=1.Cl.[CH3:17][O:18][NH:19][CH3:20].C(N(CC)CC)C>ClCCl>[CH3:17][O:18][N:19]([CH3:20])[C:7](=[O:8])[C:6]1[CH:10]=[CH:11][C:3]([S:2]([F:15])([F:14])([F:13])([F:12])[F:1])=[CH:4][CH:5]=1
Reactant: CNOC
Reactant: O=C(Cl)c1ccc(S(F)(F)(F)(F)F)cc1
Agent: Cl
Solvent: CCN(CC)CC
Solvent: ClCCl
Product: CON(C)C(=O)c1ccc(S(F)(F)(F)(F)F)cc1
Yield: 51 %

Procedure:
4-(Pentafluoro-λ6-sulfanyl)benzoyl chloride (1.00 g, 3.751 mmol), O,N-dimethyl-hydroxylamine hydrochloride (0.402 g, 4.13 mmol), and triethylamine (0.835 g, 8.25 mmol) were stirred in dichloromethane for 2 hours at room temperature. The reaction was concentrated in vacuo and diethyl ether added. The solid was collected by filtration and purified by silica gel column chromatography to afford the title compound as a solid (0.557 g, 51% yield).
Reaction SMILES: [N:1]([C@@H:4]1[C@:8](C(=O)C)([OH:9])[C@@H:7]([CH:13](C(=O)C)[OH:14])[O:6][C@H:5]1[N:18]1[CH:25]=[CH:24][C:22](=O)[NH:21][C:19]1=[O:20])=[N+:2]=[N-:3].C(O)C.S(Cl)(Cl)=O.C[N:34](C)C=O>>[N:1]([C@@H:4]1[C@H:8]([OH:9])[C@@H:7]([CH2:13][OH:14])[O:6][C@H:5]1[N:18]1[CH:25]=[CH:24][C:22]([NH2:34])=[N:21][C:19]1=[O:20])=[N+:2]=[N-:3]
Reactant: CC(=O)C(O)[C@H]1O[C@@H](n2ccc(=O)[nH]c2=O)[C@H](N=[N+]=[N-])[C@@]1(O)C(C)=O
Reactant: CN(C)C=O
Solvent: O=S(Cl)Cl
Solvent: CCO
Product: [N-]=[N+]=N[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1n1ccc(N)nc1=O
Temperature: 25 °C
Reaction time: 48 h

Procedure:
1 g. 2'-Azido-2'-desoxy-3',5'-diacetyl-uridine (see J. Hobbs, H. Sternbach, M. Sprinzl and F. Eckstein, Biochemistry, 12, 5138/1973) was mixed with 14 ml. ethanol-free chloroform and 0.14 ml. dimethyl formamide and then mixed with 2 ml. thionyl chloride. The reaction mixture was boiled under reflux, with the exclusion of moisture, for 6 hours. After cooling, the reaction mixture was evaporated in a vacuum and the residue treated with ammoniacal methanol (30 ml. dry methanol plus 30 ml. methanol saturated with ammonia). The solution was stirred for 2 days at ambient temperature and then left to stand for 2 days at 37° C. Thin layer chromatography (methanol/chloroform mixture (4/6 v/v) on silica gel plates, Herck 60 F 254) shows mainly a product with an Rf value of 0.62. The solution was evaporated, the residue applied to two plates coated with silica gel for preparative thin layer chromatography (Merck 60 F 254, 2 mm. layer thickness, 20×40 cm.) and developed with a chloroform/methanol mixture (6/4 v/v). The main bands were scraped off, the material was eluted with methanol and applied to an ion exchanger column (Dowex 1×2, OH, 1.7×21.5 cm.). After washing with water, the product was eluted with 30% aqueous methanol. The solution obtained was evaporated and the residue recrystallized from ethanol. 2'-Azido-2'-desoxycytidine was obtained in a yield of 12310 A270 units (1.32 mMol; 47% of theory). The product melts at 215° C.