Hydrogen chloride-ethyl acetate → 1-[[[4-(4-Propylpiperazin-1-yl)phenyl]carbonyl]amino]cyclohexanecarboxylic acid methyl ester hydrochloride

Participants

Reaction Steps

1 ml of 4N hydrochloric acid/ethyl acetate solution was added to a solution of 120 mg (0.31 mmol) of 1-[[[4-(4-propylpiperazin-1-yl)phenyl]carbonyl]amino]cyclohexanecarboxylic acid methyl ester in 10 ml of ethyl acetate, and the mixture was stirred at room temperature for 30 minutes. The precipitated crystal was collected by filtration to obtain 87 mg (66%) of the title compound.

Provenance & Evidence