Triethylamine → HCID 57786371, compound

Participants

Reaction Steps

To a mixture of methyl 4-chloro-2-[(2,6-dichloro-4-methoxyphenyl)amino]-1-(3-hydroxypropyl)-1H-benzimidazole-7-carboxylate (215 mg, 0.469 mmol) and triethylamine (0.327 mL, 2.35 mmol) in tetrahydrofuran (4.7 mL) was added methanesulfonyl chloride (0.148 mL, 1.87 mmol) at 0° C. The resultant mixture was stirred at room temperature for 30 min and concentrated in vacuo. After N,N-dimethylformamide (4.7 mL) and potassium carbonate (648 mg, 4.69 mmol) were added to the residue, the resultant mixture was stirred at 80° C. for 30 min, diluted with ethyl acetate, washed with water and 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 (177 mg, 0.401 mmol, 86%).

Provenance & Evidence