Acetic Acid → HCID 59497321, compound

Participants

Reaction Steps

A solution of 120 mg (0.28 mmol) of 2-[3-(1,4-dimethyl-1H-indol-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-cyclopent-1-enecarboxylic acid ethyl ester and 23 mg (0.56 mmol, 2.0 eq.) of lithium hydroxide monohydrate in 5 mL of methanol and 1 mL of water was stirred at room temperature for 2.5 days. Then the pH of the resulting mixture was adjusted to 3 with acetic acid and diluted with water. The precipitate was collected and washed with water. The isolated light pink solid was pumped overnight to give 94 mg (84%) of 2-[3-(1,4-dimethyl-1H-indol-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-cyclopent-1-enecarboxylic acid as a light pink solid.

Provenance & Evidence