Methyl iodide → HCID 57786066, compound

HRID 1628905Notes

Reaction equation

HRID 1628905 reaction equation
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23]([NH:26][S:27]([CH3:30])(=[O:29])=[O:28])[CH2:24][CH3:25])=[CH:4][CH:3]=1.[H-].[Na+].[CH3:33]I>CN(C)C=O.C(=O)(O)[O-].[Na+]>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23]([N:26]([CH3:33])[S:27]([CH3:30])(=[O:28])=[O:29])[CH2:24][CH3:25])=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 57786183HCID 57786183, compound

Product 1

HCID 57786066HCID 57786066, compoundYield 90%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 516892Sodium BicarbonateSolvent

Procedure

To a solution of N-{1-[9-chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]propyl}methanesulfonamide (60.4 mg, 0.124 mmol) in N,N-dimethylformamide (1.2 mL) was added sodium hydride (60%, 6.0 mg, 0.15 mmol. After the resultant mixture was stirred at room temperature for 30 min, methyl iodide (0.010 mL, 0.16 mmol) was added. The resultant mixture wad stirred at room temperature for 30 min, diluted with aqueous sodium bicarbonate and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 20-50% ethyl acetate/n-hexane gradient mixture to give the title compound as a colorless solid (55.6 mg, 0.111 mmol, 90%).

Workup

  1. extractionextracted with ethyl acetate
  2. washThe combined organic layer was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash column chromatography on silica gel eluting with a 20-50% ethyl acetate/n-hexane gradient mixture

Sources & evidence

ORD record
ord-44c31ab38a2648cdbe6f10d8ff813736
Source dataset
uspto-grants-2014_07
Patent number
US08785460B2

Reaction notes

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