BENZOPYRANYL HETEROCYCLE DERIVATIVES, PROCESS FOR PREPARATION THEREOF, AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

The present invention relates to novel benzopyranyl heterocycle derivatives of the formula 1, process for preparation thereof and pharmaceutical use of the benzopyranyl heterocycle derivatives. The benzopyranyl heterocycle derivatives of the present invention can be used for protecting heart, brain, retina and neuronal cell from "ischemia-reperfusion" injury, treatment for diseases related to it and suppressing lipid peroxidation.Wherein R1, R2, R3, R4, n and * are each defined in specification.