Ethyl 3-{6-[(4-aminobenzoyl)amino]-1H-benzimidazol-1-yl}-3-phenylpropanoate → 3-{6-[(4-Amino benzoyl)amino]-1H-benzimidazol-1-yl}-3-phenylpropanoic acid

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Reaction Steps

A solution of ethyl 3-{6-[(4-aminobenzoyl)amino]-1H-benzimidazol-1-yl}-3-phenylpropanoate (50 mg, 117 μmol) in hydrochloric acid (20 mL of a 5N solution) was stirred at room temperature for 72 hours. The solution was then evaporated in vacuo, and the residue was purified by RP-HPLC to afford the title compound, [LCMS (Method A, Mobile Phase II) RT=3.20 min, MH+ 401].

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