1,1'-Thiocarbonyldiimidazole → HCID 178487391, compound

HRID 2409978Notes

Reaction equation

HRID 2409978 reaction equation
[CH3:1][O:2][C:3]1[CH:11]=[C:10]2[C:6]([C:7]([CH2:18][C:19]3[N:24]=[C:23]([C:25](=[N:27][OH:28])[NH2:26])[CH:22]=[CH:21][CH:20]=3)=[C:8]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[NH:9]2)=[CH:5][CH:4]=1.[C:29](N1C=CN=C1)(N1C=CN=C1)=[S:30].C1CCN2C(=NCCC2)CC1>C(#N)C>[CH3:1][O:2][C:3]1[CH:11]=[C:10]2[C:6]([C:7]([CH2:18][C:19]3[N:24]=[C:23]([C:25]4[NH:26][C:29](=[S:30])[O:28][N:27]=4)[CH:22]=[CH:21][CH:20]=3)=[C:8]([C:12]3[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=3)[NH:9]2)=[CH:5][CH:4]=1

Participants

5

Reactant 3

HCID 802641,1'-ThiocarbonyldiimidazoleHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 136344372HCID 136344372, compound

Product 1

HCID 178487391HCID 178487391, compoundYield 101.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

Under an argon atmosphere, to a solution of 6-(6-methoxy-2-phenyl-1H-indol-3-ylmethyl)pyridine-2-carboxamidoxime (174 mg) in acetonitrile (3.7 mL) were added 1,1′-thiocarbonyldiimidazole (125 mg) and 1,8-diazabicyclo[5,4,0]-7-undecene (0.278 mL), and this mixture was stirred at room temperature for 22 hours. The reaction mixture was concentrated under reduced pressure. To the residue was added 10% aqueous citric acid solution, followed by extraction with ethyl acetate. The organic layer was washed with a saturated aqueous sodium hydrogen carbonate solution and saturated brine, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluting solvent: methanol-ethyl acetate) to obtain the title compound (196 mg). 1H-NMR (DMSO-d6) δ ppm: 3.77 (3H, s), 4.33 (2H, s), 6.63 (1H, dd, J=2.3, 8.7 Hz), 6.88 (1H, d, J=2.3 Hz), 7.12 (1H, dd, J=2.3, 6.5 Hz), 7.28-7.39 (2H, m), 7.41-7.52 (2H, m), 7.68-7.79 (4H, m), 11.16 (1H, s). ESI-MS (m/z): 415 (M+H)+

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. additionTo the residue was added 10% aqueous citric acid solution
  3. extractionfollowed by extraction with ethyl acetate
  4. washThe organic layer was washed with a saturated aqueous sodium hydrogen carbonate solution and saturated brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (eluting solvent: methanol-ethyl acetate)

Sources & evidence

ORD record
ord-6495134da8ea4d3ea3ccd6a221f39be0
Source dataset
uspto-grants-2014_08
Patent number
US08815903B2

Reaction notes

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