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Methyl iodide → N-[4-(3-cyano-1-ethyl-6-methoxy-1H-indol-2-yl)-phenyl]-N-methyl methanesulfonamide

HRID 252538
Notes
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Reaction equation

HRID 252538 reaction equation
[C:1]([C:3]1[C:11]2[C:6](=[CH:7][C:8]([O:12][CH3:13])=[CH:9][CH:10]=2)[N:5]([CH2:14][CH3:15])[C:4]=1[C:16]1[CH:21]=[CH:20][C:19]([NH:22][S:23]([CH3:26])(=[O:25])=[O:24])=[CH:18][CH:17]=1)#[N:2].[H-].[Na+].I[CH3:30]>CN(C=O)C.O>[C:1]([C:3]1[C:11]2[C:6](=[CH:7][C:8]([O:12][CH3:13])=[CH:9][CH:10]=2)[N:5]([CH2:14][CH3:15])[C:4]=1[C:16]1[CH:21]=[CH:20][C:19]([N:22]([CH3:30])[S:23]([CH3:26])(=[O:24])=[O:25])=[CH:18][CH:17]=1)#[N:2]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 59425187N-[4-(3-cyano-1-ethyl-6-methoxy-1H-indol-2-yl)-phenyl]methanesulfonamide

Product 1

HCID 59425065N-[4-(3-cyano-1-ethyl-6-methoxy-1H-indol-2-yl)-phenyl]-N-methyl methanesulfonamideYield 45%

Reagents, catalysts & solvents 2

HCID 962Water
Solvent
HCID 6228DimethylformamideSolvent

Procedure

A solution of N-[4-(3-cyano-1-ethyl-6-methoxy-1H-indol-2-yl)-phenyl]methanesulfonamide (130 mg, 0.35 mmol), prepared as in Example 1Y, in DMF (10 mL) is treated with NaH (21 mg, 0.53 mmol), and stirred at room temperature for 10 min. Iodomethane (0.03 mL, 0.53 mmol) is added, and the mixture is stirred at room temperature for 18 h. The reaction mixture is then diluted with H2O, and extracted with EtOAc (2×). The organic phases are washed with H2O and saturated NaCl and then dried and concentrated. Purification by flash chromatography over silica gel (EtOAc/CH2Cl2, 0-1%) gives 60 mg (45%) of N-[4-(3-cyano-1-ethyl-6-methoxy-1H-indol-2-yl)-phenyl]-N-methyl methanesulfonamide as a white solid.

Workup

  1. stirringthe mixture is stirred at room temperature for 18 h
  2. extractionextracted with EtOAc (2×)
  3. washThe organic phases are washed with H2O and saturated NaCl
  4. customdried
  5. concentrationconcentrated
  6. customPurification by flash chromatography over silica gel (EtOAc/CH2Cl2, 0-1%)

Sources & evidence

ORD record
ord-e84670094bfb442a89ba07b05d0a93f6
Source dataset
uspto-grants-2011_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07868037B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes