Author's Organization：Faculty of Pharmaceutical Sciences, Osaka University Faculty of Pharmaceutical Sciences, Osaka University Laboratory of Natural Products Chemistry, Otsuka Pharmaceutical Co. Institute for Protein Research, Osaka University Faculty of Pharmaceutical Sciences, Osaka University
A new trinor-guaiane sesquiterpene named clavukerin A (1) was isolated from the Okinawan soft coral Clavularia koellikeri (stolonifer) and the absolute stereostructure was elucidated by the chemical and physicochemical evidence and the X-ray crystallographic analysis.
