6 鹿児島産Xenia属軟体サンゴ2種に含まれるジテルペンの構造(口頭発表の部)

抄録

Soft corals have proved to be a rich source of unusual diterpenoid structures. The first discovered example was xenicin, which possesses a novel bicyclic diterpene skeleton. Since then, many other xenicins and xenolides have been isolated from different Xenia species, as well as other soft corals and gorgonians. Recently, we have investigated the chemical constituents of Xenia florida and Xenia sp., two soft corals collected from the Kagoshima area. Many new xenolide-related compounds have been characterized, using high-field NMR, MS, IR and UV spectroscopy. Of particular interest are a series of compounds which contain a new tricyclic structure. Details of the isolation and characterization of these and the other metabolites will be described.