Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([Cl:8])[C:3]=1[CH2:9][S:10]([C:13]1[CH:14]=[C:15]2[C:19](=[CH:20][CH:21]=1)[NH:18][C:17](=[O:22])[CH2:16]2)(=[O:12])=[O:11].[CH3:23][C:24]1[C:28]([CH:29]2[CH2:34][CH2:33][N:32]([CH3:35])[CH2:31][CH2:30]2)=[C:27]([CH3:36])[NH:26][C:25]=1[CH:37]=O>>[Cl:8][C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[C:3]=1[CH2:9][S:10]([C:13]1[CH:14]=[C:15]2[C:19](=[CH:20][CH:21]=1)[NH:18][C:17](=[O:22])/[C:16]/2=[CH:37]\[C:25]1[NH:26][C:27]([CH3:36])=[C:28]([CH:29]2[CH2:34][CH2:33][N:32]([CH3:35])[CH2:31][CH2:30]2)[C:24]=1[CH3:23])(=[O:12])=[O:11]
Reactant: O=C1Cc2cc(S(=O)(=O)Cc3c(Cl)cccc3Cl)ccc2N1
Reactant: Cc1[nH]c(C=O)c(C)c1C1CCN(C)CC1
Product: Cc1[nH]c(/C=C2\C(=O)Nc3ccc(S(=O)(=O)Cc4c(Cl)cccc4Cl)cc32)c(C)c1C1CCN(C)CC1

Procedure:
5-(2,6-Dichloro-phenylmethanesulfonyl)-1,3-dihydro-indol-2-one was condensed with 3,5-dimethyl-4-(1-methyl-piperidin-4-yl)-1H-pyrrole-2-carbaldehyde to give the titled compound.
Reaction SMILES: [CH2:1]([SH:3])[CH3:2].[OH-].[Na+].Br[CH2:7][C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9]>>[CH2:1]([S:3][CH2:7][C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH3:2]
Reactant: CC(C)(C)OC(=O)CBr
Reactant: CCS
Agent: [Na+]
Agent: [OH-]
Product: CCSCC(=O)OC(C)(C)C
Reaction time: 0.5 h

Procedure:
Under ice cooling, 4.6 ml of ethyl mercaptan was added to 62 ml of 1N-NaOH aqueous solution followed by stirring for 30 minutes. Furthermore, 10.1 ml of tert-butyl bromoacetate was gradually added to the mixture under ice cooling and the resulting mixture was reacted at room temperature for 3 hours. After completion of the reaction, the reaction mixture was extracted 4 times with ethyl acetate and the extract was washed with saturated sodium chloride aqueous solution. After the ethyl acetate layer was dried over magnesium sulfate, ethyl acetate was distilled off to give 12.0 g of crude tert-butyl (ethylthio)acetate.
Reaction SMILES: [Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8](Cl)[N:9]=[C:10]=[O:11])=[CH:4][CH:3]=1.[CH3:13][C:14]1([CH3:32])[C:19](=[O:20])[CH:18]=[C:17]([NH:21][C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[CH:23]=2)[CH2:16][CH2:15]1>ClCCl>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[C:18]3[C:19](=[O:20])[C:14]([CH3:32])([CH3:13])[CH2:15][CH2:16][C:17]=3[N:21]([C:22]3[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:29])([F:30])[F:31])[CH:23]=3)[C:10](=[O:11])[NH:9]2)=[CH:4][CH:3]=1
Reactant: CC1(C)CCC(Nc2cccc(C(F)(F)F)c2)=CC1=O
Reactant: O=C=NC(Cl)c1ccc(Br)cc1
Solvent: ClCCl
Product: CC1(C)CCC2=C(C1=O)C(c1ccc(Br)cc1)NC(=O)N2c1cccc(C(F)(F)F)c1
Temperature: 25 °C

Procedure:
A solution of 1-bromo-4-(chloro(isocyanato)methyl)benzene (569 mg, 2.31 mmol) in dichloromethane (5 mL) is added to a solution of 6,6-dimethyl-3-(3-(trifluoromethyl)-phenylamino)cyclohex-2-enone (intermediate 6, 654 mg, 2.31 mmol) in dichloromethane (15 mL), and the resulting mixture is heated at reflux for 4 h and stirred at room temperature over night. Another portion of 1-bromo-4-(chloro(isocyanato)methyl)benzene (283 mg, 1.15 mmol) is added and the mixture is heated at reflux for 24 h. The mixture is cooled to room temperature and all volatiles are evaporated. The residue is purified by flash chromatography on silica (gradient cyclohexane/ethyl acetate 90:10 to 60:40). Yield: 372 mg; ESI mass spectrum: [(79Br)-M+H]+=493, [(81Br)-M+H]+=495; Retention time HPLC: 1.37 min (Z005—001).
Reaction SMILES: Cl[CH2:2][C:3]([N:5]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[C:9](=[O:16])[NH:8][C:7]2[CH:17]=[CH:18][CH:19]=[N:20][C:6]1=2)=[O:4].[CH3:21][N:22]1[CH2:27][CH2:26][N:25](C)[CH2:24][CH2:23]1>C(#N)C>[CH3:21][N:22]1[CH2:27][CH2:26][N:25]([CH2:2][C:3]([N:5]2[C:11]3[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=3[C:9](=[O:16])[NH:8][C:7]3[CH:17]=[CH:18][CH:19]=[N:20][C:6]2=3)=[O:4])[CH2:24][CH2:23]1
Reactant: O=C1Nc2cccnc2N(C(=O)CCl)c2ccccc21
Reactant: CN1CCN(C)CC1
Solvent: CC#N
Product: CN1CCN(CC(=O)N2c3ccccc3C(=O)Nc3cccnc32)CC1
Yield: 49.1 %

Procedure:
A solution of 11-(2-chloroacetyl)-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one (5 g) and N,N'-dimethylpiperazine (4 g) in acetonitrile (100 ml) was heated to reflux for 2 hours. The mixture was evaporated and the residue, crystallized from methanol, yielded 3 g (42.9%) of 11-[2-(4-methylpiperazin-1-yl)-acetyl]-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one N1 -chloromethylate melting at 198°-200° C.
Reaction SMILES: C(OC(=O)[C:5]1[C:10]([OH:11])=[CH:9][C:8]([CH:12]2[CH2:14][CH2:13]2)=[N:7][C:6]=1[OH:15])C.N>Cl>[CH:12]1([C:8]2[N:7]=[C:6]([OH:15])[CH:5]=[C:10]([OH:11])[CH:9]=2)[CH2:14][CH2:13]1
Reactant: CCOC(=O)c1c(O)cc(C2CC2)nc1O
Agent: Cl
Agent: N
Product: Oc1cc(O)nc(C2CC2)c1
Temperature: 25 °C
Yield: 109.4 %

Procedure:
6-Cyclopropyl-2,4-dihydroxy-nicotinic acid ethyl ester (5.3 g, 20.5 mmol) was dissolved in concentrated HCl (25 mL) and the mixture was refluxed overnight. The mixture was cooled to room temperature and then neutralised with concentrated ammonia. The resulting precipitate was collected by filtration, washed with cold water and acetonitrile and dried in vacuo at 40° C. over 2 days to give the title compound (3.39 g) as a beige powder.
Reaction SMILES: [NH2:1][C:2]1[C:11]([CH3:12])=[CH:10][C:9]([Cl:13])=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5].C(OC(=O)C)(=O)C.CC([O-])=O.[K+].[N:26](OCCC(C)C)=O>C(Cl)(Cl)Cl>[Cl:13][C:9]1[CH:10]=[C:11]2[C:2](=[C:3]([C:4]([O:6][CH3:7])=[O:5])[CH:8]=1)[NH:1][N:26]=[CH:12]2
Reactant: CC(C)CCON=O
Reactant: COC(=O)c1cc(Cl)cc(C)c1N
Agent: CC(=O)[O-]
Agent: [K+]
Solvent: CC(=O)OC(C)=O
Solvent: ClC(Cl)Cl
Product: COC(=O)c1cc(Cl)cc2cn[nH]c12
Temperature: 25 °C
Reaction time: 1 h
Yield: 69.3 %

Procedure:
Methyl 2-amino-5-chloro-3-methylbenzoate (6.6 g, 33.1 mmol) was dissolved in CHCl3 (90 mL) then cooled in an icebath while acetic anhydride (7.2 mL, 76.1 mmol) was added dropwise. After the addition was complete, the reaction mixture was stirred at room temperature for ca. 1 h, then KOAc (650 mg, 6.6 mmol) was added, followed by isoamyl nitrite (9.7 mL, 72.8 mmol). The reaction mixture was heated under reflux until the reaction was complete by TLC (overnight). While cooling to room temperature, precipitation was observed. The precipitate was collected and dried to afford methyl 5-chloro-1H-indazole-7-carboxylate as a yellow solid (4.83 g, 69%): 1H NMR (300 MHz, CDCl3) δ 11.25 (s, 1H), 8.10 (s, 1H), 8.05 (s, 3H), 7.97 (s, 1H), 4.09 (s, 1H); MS (ESI+) m/z 211 (M+H).
Reaction SMILES: [OH:1][C:2]1[CH:17]=[CH:16][C:15]([O:18][CH2:19][C:20]([F:23])([F:22])[F:21])=[CH:14][C:3]=1[C:4]([NH:6][CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][N:9]=1)=[O:5].[CH3:24][O:25][CH2:26][CH2:27]Br>>[CH3:24][O:25][CH2:26][CH2:27][O:1][C:2]1[CH:17]=[CH:16][C:15]([O:18][CH2:19][C:20]([F:23])([F:21])[F:22])=[CH:14][C:3]=1[C:4]([NH:6][CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][N:9]=1)=[O:5]
Reactant: COCCBr
Reactant: O=C(NCc1ccccn1)c1cc(OCC(F)(F)F)ccc1O
Product: COCCOc1ccc(OCC(F)(F)F)cc1C(=O)NCc1ccccn1
Yield: 67.6 %

Procedure:
Using the general method of Example I Part A, 6.5 g (0.02 mole) of 2-hydroxy-N-(2-pyridylmethyl)-5-(2,2,2-trifluoroethoxy)benzamide was reacted with 3.9 g (0.028 mole) of 2-bromoethyl methyl ether to give 5.2 g of white crystalline 2-(2-methoxyethoxy)-N-(2-pyridylmethyl)-5-(2,2,2-trifluoroethoxy)benzamide, m.p. 104°-107° C.
Reaction SMILES: [Cl:1][C:2]1[N:7]=[C:6]([Cl:8])[C:5]([CH:9](O)[CH2:10][CH3:11])=[CH:4][N:3]=1.C(N(C(C)C)CC)(C)C.P(Br)(Br)([Br:24])=O>C(OCC)(=O)C>[Br:24][CH:9]([C:5]1[C:6]([Cl:8])=[N:7][C:2]([Cl:1])=[N:3][CH:4]=1)[CH2:10][CH3:11]
Reactant: O=P(Br)(Br)Br
Reactant: CCC(O)c1cnc(Cl)nc1Cl
Solvent: CCN(C(C)C)C(C)C
Solvent: CCOC(C)=O
Product: CCC(Br)c1cnc(Cl)nc1Cl
Temperature: 25 °C
Reaction time: 0.25 h

Procedure:
A solution of (±)-1-(2,4-dichloro-pyrimidin-5-yl)-propan-1-ol (0.26 g; 1.26 mmol) (from Example 7a supra) in diisopropylethylamine (0.55 mL; 3.13 mmol) (Aldrich) was cooled slightly (18° C.) to help offset the exothermicity of the reaction. Neat phosphorus oxybromide (0.35 g; 1.36 mmol) (Aldrich) was added in one portion. The cooling bath was removed and reaction mixture stirred at room temperature. After 15 minutes, the reaction mixture was diluted with ice and ethyl acetate. The organic phase was then washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated. Purification by flash chromatography (Biotage 12M; 5:95 ethyl acetate-hexanes) gave crude (±)-5-(1-bromopropyl)-2,4-dichloro-pyrimidine which was used in subsequent steps without further purification. (Yield 0.23 g). The material showed 3 peaks for the pyrimidine ring proton in its NMR spectrum indicating some displacement of the ring chlorines with bromine.
Reaction SMILES: [CH2:1]([O:5][C:6]1[CH:11]=[CH:10][C:9]([CH2:12][C@H:13]([NH:18][C:19]([C@@H:21](/[CH:34]=[CH:35]/[CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][C:42](=[O:50])[CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH3:49])[C@@:22]([OH:33])(CCO)[C:23]([O:25]C(C)(C)C)=[O:24])=[O:20])[C:14]([O:16][CH3:17])=[O:15])=[CH:8][CH:7]=1)[C:2]#[C:3][CH3:4].F[C:52](F)(F)[C:53]([O:55][C:56](=[O:61])[C:57](F)(F)F)=O.C(N(CC)CC)C>CN(C1C=CN=CC=1)C.ClCCl>[C:56]([O:55][CH2:53][CH2:52][C@:22]([OH:33])([C@@H:21]([C:19](=[O:20])[NH:18][C@H:13]([C:14]([O:16][CH3:17])=[O:15])[CH2:12][C:9]1[CH:8]=[CH:7][C:6]([O:5][CH2:1][C:2]#[C:3][CH3:4])=[CH:11][CH:10]=1)/[CH:34]=[CH:35]/[CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][C:42](=[O:50])[CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH3:49])[C:23]([OH:25])=[O:24])(=[O:61])[CH3:57]
Reactant: CC#CCOc1ccc(C[C@H](NC(=O)[C@@H](/C=C/CCCCCCC(=O)CCCCCCC)[C@@](O)(CCO)C(=O)OC(C)(C)C)C(=O)OC)cc1
Reactant: O=C(OC(=O)C(F)(F)F)C(F)(F)F
Agent: CN(C)c1ccncc1
Solvent: CCN(CC)CC
Solvent: ClCCl
Product: CC#CCOc1ccc(C[C@H](NC(=O)[C@@H](/C=C/CCCCCCC(=O)CCCCCCC)[C@@](O)(CCOC(C)=O)C(=O)O)C(=O)OC)cc1
Temperature: 25 °C
Yield: 45.6 %

Procedure:
To a mixture of No. 5217614, tert-butyl (E)-(2S,3S)-3-[(S)-2-(4-but-2-ynyloxy-phenyl)-1-methoxycarbonyl-ethylcarbamoyl]-2-hydroxy-2-(2-hydroxy-ethyl)-12-oxo-nonadec-4-enoate (150 mg, 0.214 mmol) and dichloromethane (15 mL) were added trifluoroacetic acid anhydride (TFAA, 36 μL, 0.258 mmol), triethylamine (89 μL, 0.642 mmol), and DMAP (1.3 mg, 0.0107 mmol), and the mixture was stirred at room temperature. After being stirred for 3 hours, trifluoroacetic acid anhydride (72 μL, 0.516 mmol) was added again. After confirming the consumption of No. 5217614 tert-butyl (E)-(2S,3S)-3-[(S)-2-(4-but-2-ynyloxy-phenyl)-1-methoxycarbonyl-ethylcarbamoyl]-2-hydroxy-2-(2-hydroxy-ethyl)-12-oxo-nonadec-4-enoate by LCMS, formic acid (5 mL) was added and the mixture was stirred overnight. The solvent was distilled off under reduced pressure. THF (5 mL) and a saturated aqueous solution (0.5 mL) of NaHCO3 were then added and the mixture was stirred at room temperature for 10 minutes. The solvent was distilled off under reduced pressure. The residue was then purified by preparative HPLC. The purified fraction was freeze-dried to obtain the title compound (67 mg, 48% yield, yellow oil).
Reaction SMILES: C([O:4][C@H:5]1[C@H:9]([O:10][C:11](=[O:18])[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[C@H:8]([CH2:19][O:20][C:21](=[O:28])[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[O:7][C@@H:6]1[N:29]1[CH:37]=[N:36][C:35]2[C:30]1=[N:31][CH:32]=[N:33][C:34]=2[NH2:38])(=O)C.O.NN>N1C=CC=CC=1>[C:11]([O:10][C@@H:9]1[C@H:8]([CH2:19][O:20][C:21](=[O:28])[C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)[O:7][C@H:6]([N:29]2[CH:37]=[N:36][C:35]3[C:30]2=[N:31][CH:32]=[N:33][C:34]=3[NH2:38])[C@H:5]1[OH:4])(=[O:18])[C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1
Reactant: CC(=O)O[C@H]1[C@H](OC(=O)c2ccccc2)[C@H](COC(=O)c2ccccc2)O[C@@H]1n1cnc2c(N)ncnc21
Agent: NN
Solvent: O
Solvent: c1ccncc1
Product: Nc1ncnc2c1ncn2[C@H]1O[C@@H](COC(=O)c2ccccc2)[C@@H](OC(=O)c2ccccc2)[C@@H]1O
Temperature: 25 °C
Reaction time: 22 h
Yield: 68 %

Procedure:
A solution of 9-(2-O-acetyl-3,5-di-O-benzoyl-β-L-xylofuranosyl)adenine 2 [Ref.: Gosselin, G.; Bergogne, M.-C.; Imbach, J.-L., “Synthesis and Antiviral Evaluation of β-L-Xylofuranosyl Nucleosides of the Five Naturally Occurring Nucleic Acid Bases”, Journal of Heterocyclic Chemistry, 1993, 30 (October-November), 1229-1233] (8.30 g, 16.05 mmol) and hydrazine hydrate 98% (234 mL, 48.5 mmol) in a mixture of pyridine/glacial acetic acid (4/1, v/v, 170 mL) was stirred at room temperature for 22 h. The reaction was quenched by adding acetone (40 mL) and stirring was continued for one additional hour. The reaction mixture was reduced to one half of its volume, diluted with water (250 mL) and extracted with chloroform (2×150 mL). The organic layer was washed successively with an aqueous saturated solution of NaHCO3 (3×100 mL) and water (3×100 mL), dried, filtered, concentrated and co-evaporated with toluene and methanol. The residue was purified by silica gel column chromatography (0-3% MeOH in dichloromethane) to give 3 (5.2 g, 68%) precipitated from diisopropylic ether: 1H NMR (DMSO-d6): δ 4.5-4.9 (m, 4H, H-2′, H-4′, H-5′ and H-5″), 5.64 (t, 1H, H-3′, J2′,3′=J3′,4′=3.5 Hz), 6.3 (br s, 1H, OH-2′), 6.45 (d, 1H, H-1′, J1′,2′=4.6 Hz), 7.3 (br s, 2H, NH2-6), 7.4-7.9 (m, 10H, 2 benzoyls), 8.07 and 8.34 (2s, 2H, H-2 and H-8); ms: matrix G/T, (FAB) m/z 476 [M+H]+, 136 [BH2]+, (FAB−) m/z 474 [M−H]−, 134 [B]−; UV (95% ethanol): λmax 257 nm (ε 16400), 230 nm (ε 29300), λmin 246 nm (ε 14800); [α]D20 64 (c 1.07, CHCl3). Anal. Calcd for C24H21N5O4 (M=475.45): C, 60.43; H, 4.45; N, 14.73. Found: C, 60.41; H, 4.68; N, 14.27.
Reaction SMILES: [CH:1]1([CH2:4][N:5]2[CH2:23][CH2:22][C@:12]34[C:13]5[C:14]6[O:21][C@H:11]3[CH:10]([CH:24]3[O:28][CH2:27][CH2:26][O:25]3)[CH2:9][CH2:8][C@@:7]4([OH:29])[C@H:6]2[CH2:19][C:18]=5[CH:17]=[CH:16][C:15]=6[OH:20])[CH2:3][CH2:2]1.N1C=CN=C1.[C:35]([Si:39]([CH3:42])([CH3:41])Cl)([CH3:38])([CH3:37])[CH3:36].O>CN(C=O)C>[Si:39]([O:20][C:15]1[CH:16]=[CH:17][C:18]2[CH2:19][C@H:6]3[N:5]([CH2:4][CH:1]4[CH2:2][CH2:3]4)[CH2:23][CH2:22][C@:12]45[C:13]=2[C:14]=1[O:21][C@H:11]4[CH:10]([CH:24]1[O:25][CH2:26][CH2:27][O:28]1)[CH2:9][CH2:8][C@@:7]35[OH:29])([C:35]([CH3:38])([CH3:37])[CH3:36])([CH3:42])[CH3:41]
Reactant: Oc1ccc2c3c1O[C@H]1C(C4OCCO4)CC[C@@]4(O)[C@@H](C2)N(CC2CC2)CC[C@]314
Reactant: CC(C)(C)[Si](C)(C)Cl
Agent: c1c[nH]cn1
Solvent: O
Solvent: CN(C)C=O
Product: CC(C)(C)[Si](C)(C)Oc1ccc2c3c1O[C@H]1C(C4OCCO4)CC[C@@]4(O)[C@@H](C2)N(CC2CC2)CC[C@]314
Reaction time: 0.67 h
Yield: 80 %

Procedure:
17-(cyclopropylmethyl)-4,5a-epoxy-3,14-dihydroxy-6-(1,3-dioxolan-2-yl)morphinan (3.85 g, 10 mmol) was dissolved in 10 ml of DMF, then imidazole (0.68 g, 10 mmol) and tert-butyl dimethyl chlorosilane (1.5 g, 10 mmol) were added with stirring. The whole system was reacted at a temperature ranging from 20° C. to 25° C. for 40 min. After the reaction was complete, water was added to the system and the resultant mixture was extracted with diethyl ether for 3 times. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and concentrated for crystallization to afford a white solid of 4.0 g. Yield: 80%. Melting point: 107.7-109.3° C.
Reaction SMILES: [OH:1][CH2:2][C:3]1O[CH:5]=[C:6]([O:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH3:28])[C:7](=[O:9])[CH:8]=1.Cl.[NH2:30][C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1>O>[OH:1][CH2:2][C:3]1[N:30]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[CH:5]=[C:6]([O:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH3:28])[C:7](=[O:9])[CH:8]=1
Reactant: Nc1ccccc1
Reactant: CCCCCCCCCCCCCCCCCCOc1coc(CO)cc1=O
Agent: Cl
Solvent: O
Product: CCCCCCCCCCCCCCCCCCOc1cn(-c2ccccc2)c(CO)cc1=O

Procedure:
5.0 g (12 mMole) 2-hydroxymethyl-5-octadecyloxy-4-pyranone are suspended in 90 mL water and 2 mL concentrated hydrochloric acid and mixed with 4.0 g (43 mMole) aniline. The mixture is heated under reflux for 24 hours, cooled and the precipitate formed is separated from the aqueous solution and recrystallized from ethyl acetate, an almost colorless product being obtained; m.p. 67°-72° C.
Reaction SMILES: [OH:1][C@@H:2]1[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[C@@H:4]([CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH2:3]1.[H-].[Na+].Cl[C:25]1[N:29]([CH2:30][CH2:31][O:32][CH2:33][CH3:34])[C:28]2[CH:35]=[CH:36][CH:37]=[CH:38][C:27]=2[N:26]=1>CN(C)C=O>[CH2:33]([O:32][CH2:31][CH2:30][N:29]1[C:28]2[CH:35]=[CH:36][CH:37]=[CH:38][C:27]=2[N:26]=[C:25]1[O:1][C@@H:2]1[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[C@@H:4]([CH2:15][C:16]2[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=2)[CH2:3]1)[CH3:34]
Reactant: CCOCCn1c(Cl)nc2ccccc21
Reactant: CC(C)(C)OC(=O)N1CC[C@@H](O)C[C@@H]1Cc1ccccc1
Agent: [H-]
Agent: [Na+]
Solvent: CN(C)C=O
Product: CCOCCn1c(O[C@@H]2CCN(C(=O)OC(C)(C)C)[C@@H](Cc3ccccc3)C2)nc2ccccc21
Temperature: 25 °C
Reaction time: 1.5 h
Yield: 118.7 %

Procedure:
(±)-1,1-dimethylethyl trans-4-hydroxy-2-(phenylmethyl)-1-piperidinecarboxylate (25.6 g) was dissolved in N,N-dimethylformamide (256 ml). Sodiumhydride (4.24 g) was added and the mixture was stirred at RT for 1.5 hours. 2-chloro-1-(2-ethoxyethyl)-1H-benzimidazol (24.8 g) was added and the mixture was stirred at 70° C. for 18 hours. The solvent was evaporated, the residue taken up in water and CH2Cl2 and the layers were separated. The organic layer was dried, filtered and the solvent evaporated, yielding 50 g (100%) of (±)-1,1-dimethylethyl trans-4-[[1-(2-ethoxyethyl)-1H-benzimidazol-2-yl]oxy]-2-(phenylmethyl)-1-piperidine-carboxylate (interm 27).
Reaction SMILES: [OH-].[Na+].O=[CH:4][C:5]1[CH:13]=[CH:12][CH:11]=[C:8]([O:9][CH3:10])[C:6]=1[OH:7].Br.Br[CH2:16][C:17]([C:19]1[CH:24]=[CH:23][N:22]=[CH:21][CH:20]=1)=[O:18]>C(O)C>[N:22]1[CH:23]=[CH:24][C:19]([C:17]([C:16]2[O:7][C:6]3[C:8]([O:9][CH3:10])=[CH:11][CH:12]=[CH:13][C:5]=3[CH:4]=2)=[O:18])=[CH:20][CH:21]=1
Reactant: COc1cccc(C=O)c1O
Reactant: O=C(CBr)c1ccncc1
Agent: Br
Agent: [Na+]
Agent: [OH-]
Solvent: CCO
Product: COc1cccc2cc(C(=O)c3ccncc3)oc12
Temperature: 55 °C
Reaction time: 0.17 h
Yield: 27 %

Procedure:
Sodium hydroxide (1.22 g) was added to a solution of o-vanillin (2.11 g) in ethanol (50 ml) at 55° C. under a nitrogen atmosphere. The reaction mixture was stirred for 10 minutes to give a yellow suspension. 4-(Bromoacetyl)pyridine hydrobromide (5 g) was then added portionwise and the solution heated at 55° C. for 12 h, then at 65-70° C. for a further 12 h. The reaction mixture was cooled to room temperature and the solvent removed in vacuo. The residue was partitioned between water (250 ml, containing sodium hydroxide (0.5 g)) and dichloromethane (2×200 ml). The combined organic phases were washed with water (100 ml), dried over magnesium sulphate, filtered and evaporated in vacuo onto silica gel. The compound was washed through a pad of silica with ethyl acetate; the ethyl acetate was removed in vacuo and the residue azeotroped with hexane. The resulting solid was washed with hexane and filtered to furnish the title compound (0.95 g) as a yellow solid.
Reaction SMILES: [C@@H:1]1([N:9]2[CH:16]=[CH:15][C:13](=[O:14])[NH:12][C:10]2=[O:11])[O:8][C@H:5]([CH2:6][OH:7])[C@@H:3]([OH:4])[CH2:2]1.[C:17]1([CH3:27])[CH:22]=[CH:21][C:20]([S:23](Cl)(=[O:25])=[O:24])=[CH:19][CH:18]=1>N1C=CC=CC=1>[S:23]([O:7][CH2:6][C@H:5]1[O:8][C@@H:1]([N:9]2[CH:16]=[CH:15][C:13](=[O:14])[NH:12][C:10]2=[O:11])[CH2:2][C@@H:3]1[OH:4])([C:20]1[CH:21]=[CH:22][C:17]([CH3:27])=[CH:18][CH:19]=1)(=[O:25])=[O:24]
Reactant: O=c1ccn([C@H]2C[C@H](O)[C@@H](CO)O2)c(=O)[nH]1
Reactant: Cc1ccc(S(=O)(=O)Cl)cc1
Solvent: c1ccncc1
Product: Cc1ccc(S(=O)(=O)OC[C@H]2O[C@@H](n3ccc(=O)[nH]c3=O)C[C@@H]2O)cc1
Temperature: 0 °C
Reaction time: 24 h
Yield: 66 %

Procedure:
22.8 GM OF DEOXYURIDINE (100 MMOLES) ARE DISSOLVED IN 100 ML OF FRESHLY DISTILLED, DRY PYRIDINE AND KEPT ON ICE AT 4° C. Freshly recrystallized p-toluenesulfonyl chloride (22 gm, 115 mmoles) is dissolved in a separate 100 ml of cold pyridine and then slowly added to the nucleoside solution. The reaction mixture is left standing at 4° C for 24 hours and the solution poured into 400 ml of ice water. This solution is then extracted twice with 500 ml of chloroform, the chloroform extracts combined and back extracted with 250 ml of a saturated solution of sodium bicarbonate and 250 ml of water. The chloroform layer is collected and dried over anhydrous magnesium sulfate. The solvent is removed by rotary evaporation in vacuo to yield 32 gm of a crude, tan-colored product. Recrystallization from 95% ethanol affords 25.3 gm (66% yield) of white crystals, M.P. 162°.
Reaction SMILES: Cl.[Cl:2][C:3]1[CH:9]=[CH:8][C:7]([O:10][CH3:11])=[CH:6][C:4]=1[NH2:5].C(O)(=O)C.[O-:16][C:17]#[N:18].[K+]>O>[Cl:2][C:3]1[CH:9]=[CH:8][C:7]([O:10][CH3:11])=[CH:6][C:4]=1[NH:5][C:17]([NH2:18])=[O:16]
Reactant: COc1ccc(Cl)c(N)c1
Reactant: N#C[O-]
Agent: Cl
Agent: [K+]
Solvent: O
Solvent: CC(=O)O
Product: COc1ccc(Cl)c(NC(N)=O)c1
Temperature: 30 °C
Reaction time: 1 h
Yield: 81.1 %

Procedure:
2-Chloro-5-methoxyaniline hydrochloride (26 g, 134 mmol) was added to acetic acid (117 ml) and water (13 ml). The slurry was warmed to 30° C. A solution of potassium cyanate (13 g, 161 mmol) in water (104 ml) was added dropwise. After 1 hour at 40° C., the reaction was cooled to 20° C., filtered and washed with water (78 ml). The product was dried overnight in vacuo at 60° C. to yield the title compound as a white solid (21.8 g, 81%).
Reaction SMILES: Cl.[C:2]1([C@@H:8]2[CH2:10][C@H:9]2[NH2:11])[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[S:12]1[CH2:18][C:16](=[O:17])[NH:15][C:13]1=S.C(N(CC)C(C)C)(C)C>C(#N)C>[C:2]1([C@@H:8]2[CH2:10][C@H:9]2[NH:11][C:13]2[S:12][CH2:18][C:16](=[O:17])[N:15]=2)[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
Reactant: O=C1CSC(=S)N1
Reactant: N[C@@H]1C[C@H]1c1ccccc1
Agent: Cl
Solvent: CC#N
Solvent: CCN(C(C)C)C(C)C
Product: O=C1CSC(N[C@@H]2C[C@H]2c2ccccc2)=N1
Temperature: 0 °C
Reaction time: 48 h
Yield: 40.8 %

Procedure:
To a suspension of (1R,2S)-2-phenyl-cyclopropylamine hydrochloride (0.85 g, 5 mmol) and rhodanine (2-thio-4-thiazolin-4-one) (0.68 g, 5 mmol) in acetonitrile (20 mL) was added DIEA (N,N-diisopropylethylamine) (2.61 mL, 15 mmol) at room temperature. Then, this solution was cooled to 0° C. and mercuric chloride (1.35 g, 5 mmol) was added in two portions within a period of 10 min. After addition, the suspension was allowed to warm to room temperature and stirred for 2 days. The resulting black solids were filtered through a plug of celite and washed with ethyl acetate (500 mL). The filtrates were removed under the vacuum and the crude residue was diluted with water (100 mL) and ethyl acetate (100 mL). The two layers were separated and the aqueous layer was extracted with ethyl acetate (2×100 mL). The combined organic extracts were washed with brine solution and dried over anhydrous magnesium sulfate. Filtration of the drying agent and removal of the solvent under the vacuum gave the crude residue which was purified by using a Biotage silica gel column chromatography to obtain 0.474 g (42% yield) of 2-((1R,2S)-2-phenyl-cyclopropylamino)-thiazol-4-one as a white amorphous solid: EI-HRMS m/e calcd for C12H12N2OS (M+) 232.0670, found 232.0665.