a Department of Chemistry, Tamkang University, Tamsui, Taiwan, R.O.C.
b Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770, Japan
Abstract:
Nudenoic acid, a new sesquiterpene possessing a novel tricyclic skeleton, was isolated from a Taiwanese liverwort Mylia nuda. The structure of nudenoic acid was determined by spectroscopic means and X-ray analysis.