THREE NEW ent-VALERENANE SESQUITERPENES FROM AN OKINAWAN SOFT CORAL

Abstract

Three new sesquiterpenes named valerenenol (1), isovalerenenol (2), and anhydrovalerenenol (3), having a new carbon skeleton of ent-valere-nane, were isolated from an Okinawan soft coral (unidentified sp., Xeniidae) and their absolute stereostructures were elucidated by chemical, physicochemical, and X-ray crystallographic analyses.