Dimethylformamide → 5-(2-methoxyethoxy)-7-[methyl(2-thienylsulfonyl)amino]-1H-indole-2-carboxamide

HRID 1994815Notes

Reaction equation

HRID 1994815 reaction equation
[CH3:1][O:2][CH2:3][CH2:4][O:5][C:6]1[CH:7]=[C:8]2[C:12](=[C:13]([N:15]([CH3:24])[S:16]([C:19]3[S:20][CH:21]=[CH:22][CH:23]=3)(=[O:18])=[O:17])[CH:14]=1)[NH:11][C:10]([C:25](O)=[O:26])=[CH:9]2.Cl.C[N:30](C)CCCN=C=NCC.CN(C)C=O>O>[CH3:1][O:2][CH2:3][CH2:4][O:5][C:6]1[CH:7]=[C:8]2[C:12](=[C:13]([N:15]([CH3:24])[S:16]([C:19]3[S:20][CH:21]=[CH:22][CH:23]=3)(=[O:17])=[O:18])[CH:14]=1)[NH:11][C:10]([C:25]([NH2:30])=[O:26])=[CH:9]2

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 575032095-(2-methoxyethoxy)-7-[methyl(2-thienylsulfonyl)amino]-1H-indole-2-carboxylic acid

Product 1

HCID 574761955-(2-methoxyethoxy)-7-[methyl(2-thienylsulfonyl)amino]-1H-indole-2-carboxamideYield 95.5%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of 5-(2-methoxyethoxy)-7-[methyl(2-thienylsulfonyl)amino]-1H-indole-2-carboxylic acid (1.05 g), 1H-1,2,3-benzotriazol-1-ol-ammonia complex (590 mg), N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride (750 mg) and N,N-dimethylformamide (5 mL) was stirred at room temperature for 15 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed successively with aqueous citric acid solution, saturated aqueous sodium hydrogencarbonate and saturated brine, dried (MgSO4), and concentrated to give the title compound (1.00 g, yield 94%) as colorless crystals. The crystals were recrystallized from acetone-hexane to give colorless prism crystals. melting point 214-215° C.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed successively with aqueous citric acid solution, saturated aqueous sodium hydrogencarbonate and saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-94c0ded527bd405ca38407bfe926f2c5
Source dataset
uspto-grants-2010_01
Patent number
US07652133B2

Reaction notes

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