And a pharmaceutical preparation containing the same as an active ingredient (BENZOPYRAN DERIVATIVE, PRODUCTION THEREOF, AND PHARMACEUTICAL PREPARATION CONTAINING THE SAME AS ACTIVE INGREDIENT)

摘要

A benzopyran derivative of the following formula, its pharmacologically acceptable acid addition salt, its preparation method and medicines containing it:;(Wherein X represents an alkyl group alkoxy group and the like, and R^OneIndependently represent an alkyl group, an alkoxy group or the like, and R²To R⁷Independently represent a hydrogen atom, an alkyl group or the like, and R⁸R is a hydrogen atom or a lower alkyl group, m is an integer of 0 to 3, n is an integer of 0 to 3, m and n are not an integer of 3 or more, and 0 is 0 or 1 to be).