New derivatives of 20,21 - substituted to the new # thus obtained, their application as medicinal products and the pharmaceutical compositions containing them,

摘要

A compound and all possible racemic or optically active isomer forms, selected from the group consisting of compound of the formula IMAGE (I) wherein the substituents are defined as set forth in the application as filed. Useful for treating cerebral insufficiencies of anoxic or ischemic origin.