| abstract |
Provided is a method for producing a pyrazolecarboxylic acid derivative which is useful as an important intermediate for 11βHSD-1 inhibitors.nFormula (XI)n(In the formula, each of R 1 and R 2 independently represents a hydrogen atom or a substituted or unsubstituted alkyl group; R 3 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted cycloalkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, or a substituted or unsubstituted heterocyclyl group; and R 4 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted cycloalkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, or a substituted or unsubstituted heterocyclyl group.) |