Two new diterpene glycosides from the soft coral lemnalia bournei
Two new bicyclic diterpene glycosides, lemnaboursides B and C (1, 2), have been isolated from the Chinese soft coral Lemnalia bournei. They are the monoacetate derivatives of lemnabourside (3) previously obtained from the same species. The structures of compounds 1 and 2, which showed weak cytotoxicity against HepA, S180A and EAC cells, respectively, were established from spectral data and chemical transformations.
Guangdong Provincial Institute of Materia Medica, Guangzhou 510180, People's Republic of China, and Department of Chemistry, Zhongshan University, Guangzhou 510275, People's Republic of China.
M
Zhang
Z
Huang