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Paper | Special issue | Vol 61, No. 1, 2003, pp.189-196
Published online, 24th June, 2003
DOI: 10.3987/COM-03-S17
Two New Xenicane Diterpenoids from Okinawan Soft Coral of the Genus, Xenia

Hiroaki Miyaoka, Masakazu Nakano, Kazuo Iguchi, and Yasuji Yamada*

*School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan

Abstract

Two new xenicane diterpenoids, dihydroxeniolide-A and isoxeniatriacetate, were isolated from Okinawan soft coral of the genus, Xenia. The relative configurations of two new xenicane diterpenoids were determined based on spectroscopic analysis. The absolute configuration of dihydroxeniolide-A was determined using the modified Mosher’s method. The absolute configuration of isoxeniatriacetate was determined by chemical conversion.