Methyl iodide → N-[2-(benzylthio)-3,3-dimethoxypropyl]-1-(methoxymethyl)-7-[methyl(pyridin-2-ylsulfonyl)amino]-1H-indole-2-carboxamide

HRID 2238955Notes

Reaction equation

HRID 2238955 reaction equation
[CH2:1]([S:8][CH:9]([CH:36]([O:39][CH3:40])[O:37][CH3:38])[CH2:10][NH:11][C:12]([C:14]1[N:15]([CH2:33][O:34][CH3:35])[C:16]2[C:21]([CH:22]=1)=[CH:20][CH:19]=[CH:18][C:17]=2[NH:23][S:24]([C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][N:28]=1)(=[O:26])=[O:25])=[O:13])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:41](=O)([O-])[O-].[K+].[K+].CI>CN(C)C=O.C(OCC)(=O)C>[CH2:1]([S:8][CH:9]([CH:36]([O:39][CH3:40])[O:37][CH3:38])[CH2:10][NH:11][C:12]([C:14]1[N:15]([CH2:33][O:34][CH3:35])[C:16]2[C:21]([CH:22]=1)=[CH:20][CH:19]=[CH:18][C:17]=2[N:23]([CH3:41])[S:24]([C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][N:28]=1)(=[O:26])=[O:25])=[O:13])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 3

HCID 6328Methyl iodide2×HCID 11430Potassium Carbonate2×HCID 59136068N-[2-(benzylthio)-3,3-dimethoxypropyl]-1-(methoxymethyl)-7-[(pyridin-2-ylsulfonyl)amino]-1H-indole-2-carboxamide

Product 1

HCID 59135638N-[2-(benzylthio)-3,3-dimethoxypropyl]-1-(methoxymethyl)-7-[methyl(pyridin-2-ylsulfonyl)amino]-1H-indole-2-carboxamideYield 102.8%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of N-[2-(benzylthio)-3,3-dimethoxypropyl]-1-(methoxymethyl)-7-[(pyridin-2-ylsulfonyl)amino]-1H-indole-2-carboxamide (1.52 g) and potassium carbonate (0.54 g) in N,N-dimethylformamide (14 mL) was added methyl iodide (0.16 mL) under ice-cooling, and the mixture was stirred from under ice-cooling to room temperature for 18 hr. The reaction solution was ice-cooled, potassium carbonate (0.30 g) and methyl iodide (0.16 mL) were added again, and the mixture was further stirred from under ice-cooling to room temperature for 15 hr. The reaction solution was diluted with ethyl acetate, washed with aqueous citric acid solution, water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was subjected to silica gel column chromatography (ethyl acetate:hexane=4:6-6:4) to give the title compound (1.6 g, yield: 100%) as a colorless oil.

Workup

  1. temperaturecooling
  2. temperaturecooled
  3. stirringthe mixture was further stirred from under ice-
  4. temperaturecooling to room temperature for 15 hr
  5. washwashed with aqueous citric acid solution, water and saturated brine
  6. dry with materialdried over anhydrous magnesium sulfate
  7. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-d446ab7d9dc64176ac76f601cb295211
Source dataset
uspto-grants-2010_05
Patent number
US07718798B2

Reaction notes

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