Xeniaphyllenol

Xeniolides A (152) and B (153) are a pair of lactones, related to the prenylated caryophyllene xeniaphyllenol and xenicin, which have been isolated from the soft coral Xenia macrospiculata. Hydroxydilophol (154) is a germacrene-like diterpenoid which has been obtained from the brown alga Dictyota masonii. The full paper, including an X-ray analysis, has appeared on dictyodial and dictyolactone which were obtained from various Dictyota and Aplysia species. A... 

Marine organisms have provided the source of a number of unusual diterpenoid skeleta. Obtusadiol (115) is a bromo-diterpenoid which has been obtained from the red alga Laurencia obtusa. Its structure followed from chemical degradation including a facile ring contraction of the bromohydrin. A group of prenylated caryophyllenes , xeniaphyllenol (116), its 4,5-epoxide, and an enol-ether related to xenicin, ° xeniculin (117), have been found in Xenia macro-... 

Groweiss, A. and Kashman, Y. (1978b) Xeniculin, xeniaphyllenol and xeniaphyllenol oxide new diterpenoids from the soft coral Xenia macrospiculata. Tetrahedron Lett., 19, 2205-2208. 

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