Briaroxalides : Novel diepoxybriarane diterpenes from an okinawan gorgonian briareum SP.

Abstract

Seven new 8,17- and 11,12-diepoxybriarane diterpenoids, briaroxalides A-G (1-7), were isolated from an Okinawan gorgonian Briareum sp. The structures of the diterpenoids were determined on the basis of spectroscopic analysis, chemical conversions and X-ray diffraction analysis. © 2012 The Japan Institute of Heterocyclic Chemistry.