CLAUSENAMIDE C5 HYDROXYL DERIVATIVES AND N-SUBSTITUTED DERIVATIVES, PROCESSES FOR THEIR PREPARATION, ITS COMPOSITION AND USE

摘要

The invention provides C5 hydroxyl substituted clausenamide stereoisomer , N - substituted Derivatives and processes for their preparation, it also provide s its pharmaceutical composition containing the same compounds as the active components and the use in the preparation of a medicament for the treatment of senilism and for improving memory.