反应详情

4-Cyano-3-[4-(2-cyanophenyl)phenyl]-5-ethyl-1-methylpyrrole-2-carboxylic acid, Form I (300 mg) is slurried at RT in a 1:1 v/v mixture (8 mL) of DMSO-H2O for approximately 22 hours, yielding the title compound as a clumpy, granular solid.