HCID 57786179, compound → HCID 57785917, compound

Participants

Reaction Conditions

Reaction Steps

Ethylmagnesium bromide (3.0 M solution in diethyl ether, 51 μL, 0.153 mmol) was added to a stirred solution of 9-chloro-1-(3,5-dichloropyridin-2-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole-6-carbaldehyde (53.7 mg, 0.141 mmol) in tetrahydrofuran (1.0 mL) at 0° C., and the mixture was stirred at 0° C. for 50 min. The reaction was quenched by aqueous saturated ammonium chloride, and the mixture was extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated in vacuo to give the title compound as a colorless solid (57.8 mg, 0.141 mmol, 100%).

Provenance & Evidence