Patent ID: 6555694
Filing Date: 2003-04-29
Classification: C07D

Abstract:
A process for producing a compound represented by the formula (12): wherein R21 to R25 are each independently a hydrogen atom, a hydroxyl group, a halogen atom, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, a perfluoroalkyl group of 1 to 4 carbon atoms, a cyano group, a nitro group, an amino group, a carboxyl group, a mercapto group, an alkylthio group of 1 to 4 carbon atoms or a carbamoyl group, which process includes a step of reacting a compound represented by the formula (13): wherein R21 to R25 have the same definitions as given above with 1,1-cyclopropanedicarboxylic acid to produce a compound of the formula (12).