Hydrochloric Acid → HCID 68184624, compound

HRID 2409975Notes

Reaction equation

HRID 2409975 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]([NH:27][NH2:28])=[O: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)=[O:30].Cl>O1CCCC1>[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[O:26][C:29](=[O:30])[NH: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 313Hydrochloric AcidHCID 682631,1'-CarbonyldiimidazoleHCID 86703285HCID 86703285, compound

Product 1

HCID 68184624HCID 68184624, compoundYield 97.8%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a suspension of 6-(6-methoxy-2-phenyl-1H-indol-3-ylmethyl)pyridine-2-carbohydrazide (258 mg) in tetrahydrofuran (3.5 mL) was added 1,1′-carbonyldiimidazole (135 mg), and this mixture was stirred at room temperature for 3 hours. To the reaction mixture was added 1 mol/L hydrochloric acid, followed by extraction with ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluting solvent: ethyl acetate-hexane) to obtain the title compound (270 mg). 1H-NMR (DMSO-d6) δ ppm: 3.77 (3H, s), 4.34 (2H, s), 6.63 (1H, dd, J=2.3, 8.5 Hz), 6.87 (1H, d, J=2.3 Hz), 7.27-7.40 (3H, m), 7.42-7.53 (2H, m), 7.68-7.90 (4H, m), 11.20 (1H, s), 12.76 (1H, br s). ESI-MS (m/z): 399 (M+H)+.

Workup

  1. extractionfollowed by extraction with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (eluting solvent: ethyl acetate-hexane)

Sources & evidence

ORD record
ord-eb39c7694970402ca92ad356426b88e0
Source dataset
uspto-grants-2014_08
Patent number
US08815903B2

Reaction notes

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