Methyl iodide → HCID 57786066, compound

Participants

Reaction Steps

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%).

Provenance & Evidence