METHOD FOR PRODUCING BENZYLPYRAZOLE DERIVATIVE AND PRODUCTION INTERMEDIATE THEREOF

摘要

A production intermediate of a glucopyranosyloxypyrazole derivative which is represented by general formula (E) (wherein R3 and R4 are as defined below) and is useful as a therapeutic agent for diabetes or the like, and a method for producing a benzylpyrazole derivative, said method being indistrially more advantageous than conventional methods for producing a benzylpyrazole derivative, can be provided by causing a reaction of a compound represented by general formula (D) (wherein each of R1 and R2 represents a C1-6 alkyl group or the like; R3 represents a halogen atom, a C1-6 alkoxy group or the like; and R4 represents a hydrogen atom, a halogen atom, a C1-6 alkoxy group or the like).