Patent ID: 6670447
Filing Date: 2003-12-30
Classification: C07C,C07D

Abstract:
A compound of formula (1â€²): whereinR1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocycle, or a substituted or unsubstituted heterocyclic alkyl group: R2â€² represents an unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocycle, or a substituted or unsubstituted heterocyclic alkyl group; with a proviso that a compound in which R2â€² is a 2-oxopropyl group, a compound of the following formula (2) is excluded.