软珊瑚Sarcophyton sp.中一个新的西松烷二萜内酯的分离及结构测定

肉芝软珊瑚 Sarcophyton富含二萜 ,从这类软珊瑚生物体中已经分离出许多含十四元环结构的西Scheme 1　 Sturcture of Sarcophydiol 1松烷二萜内酯 ,例如 Sarcophinone[1] ,iso-Sarcophinone[2 ] ,Sarcophine[3,4 ] ,Sartrochine[5] 和 iso-Sarcophine[6 ,7] .这些西松烷二萜内酯均有较强的细胞毒性 .在对采自南中国海的一种肉芝软珊瑚 Sar-cophyton sp.次生代谢产物的研究过程中 ,我们分离得到一个在生源上与 iso- Sarcophine有密切关系的新西松烷二萜内酯 Sarcophydiol 1 (结构见Scheme 1 ) .本文报道其分离方法及结构测定结果 .1　…

Separation and Structural Determination of Structure of a New Cembranoid Lactone from the Soft Coral of Sarcophyton sp.

Many cembranes, 14 membered ring diterpenoids, were reported to have antitumor and antimicrobial activities. Soft corals are rich sources of cembrenoid diterpenes. We reported cembrenoids lactones, such as sarcophinone, iso sarcophinone, sarcophine, sartrochine from the species of Sarcophyton in our earlier papers,. In continuation of our studies on the soft coral Sarcophyton , we obtained a new cembranoid lactone, named sarcophydiol(1) from a specimen of Sarcophyton sp . collected around the bay of Sanya, Hainan Island. On the basis of spectroscopic methods, its structure was determined as ( 10S*,11S*)3,7,11α ,15 tetramethyl 10 β,11β dihydroxy cembr 2 E,6E,14(15)Z trien 16,1 olide(1). The bioactivities of compound 1 were under investigating.