A New Diepoxy abietaneolide from Suregada multiflora

摘要

A new (1) and two known (2-3) diterpene lactones belonging to a rare class of diepoxy abietaneolide, were isolated from the cytotoxic extract of Suregada multylora. New compound 1 is characterized as 3 beta-hydroxy-8, 14,beta: 11,12 alpha-diepoxy-13(15)-abietane-16, 12-olide, on the basis of extensive spectral studies. This is the first report describing 2D NMR studies of this unique class of diepoxy abietaneolide.