Injectable sustained-release microspheres of huperzine a compoounds

摘要

Sustained-release microspheres of Huperzine A compounds, the preparation and use thereof, said sustained-release microspheres comprise Huperzine A compounds represented by the formula (Ia) and biodegradably pharmaceutically acceptable polymer excipients, wherein, X and Y independently represent hydrogen or methyl, Z1 and Z2 independently represent hydrogen or in combination represent