Studies on bioactive components from Chinese medicinal plants

Studies on bioactive components from Chinese medicinal plants

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Several novel bioactive components caruso rhodiola isolated from Chinese medicinal plants will be presented.These include novel maytansinoid tumor, inhibitors, some new ent-kaurane and rosane diterpenoids from Mallotus anomalus Meer et Chun (Euphorbiaceae), as well asnovel insecticide, stemona alkaloids from Stemona parviflora C.H.Wright (Stemonaceae).Both are native plants of Hainan island, Chine.

2D NMR techniques such as mono and ellakai hetero-COSY, NOESY, COLOC as well as H-NMR line broadening effect were utilized for structure elucidation.The separation techniques, struture elucidations and bioassay results will be reported.