Triethylamine → HCID 57786302, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 4-(9-chloro-6-formyl-3,4-dihydropyrimido[1,2-a]benzimidazol-1(2H)-yl)-3-methylbenzamide (100 mg, 0.271 mmol) and triethylamine (0.189 mL, 1.36 mmol) in N,N-dimethylformamide (2.7 mL) was added thionyl chloride (0.0293 mL, 0.406 mmol) at room temperature, and the mixture was stirred at 40° C. for 30 min. After triethylamine (0.189 mL, 1.36 mmol) and thionyl chloride (0.0293 mL, 0.406 mmol) were added to the reaction mixture, the mixture was stirred at 40° C. for 10 min and diluted with aqueous sodium bicarbonate. The resultant mixture was 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 30-70% ethyl acetate/n-hexane gradient mixture to give the title compound as a yellow solid (66.2 mg, 0.189 mmol, 70%).

Provenance & Evidence