Triethylamine → Ethyl 3-{6-[(4-nitrobenzoyl)amino]-1H-benzimidazol-1-yl}-3-phenylpropanoate

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Reaction Steps

To a solution of ethyl 3-(6-amino-1H-benzimidazol-1-yl)-3-phenylpropanoate (200 mg, 647 μmol) in dichloromethane (15 mL) was added triethylamine (190 μL, 1.43 mmol) and 4-nitrobenzoyl chloride (264 mg, 1.43 mmol). The solution was stirred at room temperature for 72 hours, and was then evaporated in vacuo. The residue was purified by flash column chromatography on silica gel, eluting with a mixture of dichloromethane and methanol (97:3) to afford the title compound, [LCMS (Method A, Mobile Phase II) RT=5.42 min, MH+ 459].

Provenance & Evidence