MeSH note : terpenoid isolated from the roots of Paeonia albiflora; structure given in first source;
showed strong inhibitory activity against 3-alpha-hydroxysteroid dehydrogenase;
MeSH CAS label : 18-Norandrosta-11,13(17)-diene-15,16-dione, 3,17-dihydroxy-4,4,8,14-tetramethyl-,
(3beta,5alpha)-;