obtained from 1, because an acid hydrolysis of 1 gave menisdaurilide (2), and enzymatic hydrolysis with emulsin did not give the aglycone. On the other hand, a compound named coculauril (3) was isolated from Cocculus lauriforius. This compound has the same planner structure corresponding to the aglycone of 1, but the stereochemistry was reported to be (E,4R,6S). Here, we confirmed the absolute stereochemistry
Artemisinin (Qinghaosu) Derivatives, Their Preparation Methods And Their Use, And Pharmaceutical Compositions Containing The Same
申请人:Li Ying
公开号:US20080139642A1
公开(公告)日:2008-06-12
The invention provides a type of artemisinin derivatives having following structure I, its preparation method and use, as well as a pharmaceutical composition containing such artemisinin derivatives and its use. The artemisinin derivatives of the present invention and their pharmaceutical composition containing the artemisinin derivatives. have immunosuppressive activities and can be used more safely. The composition which comprises the artemisinin derivatives can be formulated into long-term dosage forms such as tablet, pellet and the like, and have wider productive and use value.
US7910750B2
申请人:——
公开号:US7910750B2
公开(公告)日:2011-03-22
Chemical Defense of the Crust FungusAleurodiscus amorphus by a Tailor-Made Cyanogenic Cyanohydrin Ether