Methyl iodide → N-methyl-N-(3-{2-[4-(2-methyl-5-quinolinyl)-1-piperazinyl]ethyl}phenyl)acetamide

HRID 2373648Notes

Reaction equation

HRID 2373648 reaction equation
[CH3:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][C:8]=2[N:12]2[CH2:17][CH2:16][N:15]([CH2:18][CH2:19][C:20]3[CH:21]=[C:22]([NH:26][C:27](=[O:29])[CH3:28])[CH:23]=[CH:24][CH:25]=3)[CH2:14][CH2:13]2)[N:3]=1.[H-].[Na+].I[CH3:33]>C1COCC1>[CH3:33][N:26]([C:22]1[CH:23]=[CH:24][CH:25]=[C:20]([CH2:19][CH2:18][N:15]2[CH2:14][CH2:13][N:12]([C:8]3[CH:7]=[CH:6][CH:5]=[C:4]4[C:9]=3[CH:10]=[CH:11][C:2]([CH3:1])=[N:3]4)[CH2:17][CH2:16]2)[CH:21]=1)[C:27](=[O:29])[CH3:28]

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 49850872N-(3-{2-[4-(2-Methyl-5-quinolinyl)-1-piperazinyl]ethyl}phenyl)acetamide

Product 1

HCID 49850768N-methyl-N-(3-{2-[4-(2-methyl-5-quinolinyl)-1-piperazinyl]ethyl}phenyl)acetamideYield 61%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A solution of N-(3-{2-[4-(2-methyl-5-quinolinyl)-1-piperazinyl]ethyl}phenyl)acetamide (50 mg) was dissolved in THF (2.5 mL) and sodium hydride (60% w/w oil dispersion, 0.005 g, 1 eq.) was added at 0° C. After 5 minutes iodomethane was added (5 uL, 1.0 eq.) and the mixture was warmed to room temperature. After 10 h the solution was partitioned between water (3 mL) and ethyl acetate (3×5 mL). The combined organic extracts were washed with brine, dried over sodium sulfate and concentrated under vacuum. The crude was purified by flash chromatography on silica gel, eluting with a gradient from dichloromethane to dichloromethane-methanol (98:2) affording the title compound in 61% yield (0.02 g).

Workup

  1. customAfter 10 h the solution was partitioned between water (3 mL) and ethyl acetate (3×5 mL)
  2. washThe combined organic extracts were washed with brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated under vacuum
  5. customThe crude was purified by flash chromatography on silica gel
  6. washeluting with a gradient from dichloromethane to dichloromethane-methanol (98:2)

Sources & evidence

ORD record
ord-bb9d39c28aea4968a6ca319f272f10b7
Source dataset
uspto-grants-2008_12
Patent number
US07459456B2

Reaction notes

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