STRUCTURE OF VERSICOLACTONE A,A NOVEL SESQUITERPENE LACTONE FROM ARISTOLOCHIA VERSICOLAR S.M.HWANG

摘要

A novel sesquiterpene tactone,versicolactone A,with 12-carbonring skeleton,has been isolated from the roots of Aristolochia versicolarS.M.Hwang,and the structure was elucidated on the basis of 2D NMR and MSspectral data.