Oleanane benzoates from the bark of Ploiarium alternifolium
摘要:
Two triterpenoid benzoates, 3-beta-benzoyloxyoleana-11,13(18)-dien-28-oic acid, characterized as its methyl ester, and 3-beta-benzoyloxyolean-11-en-13-beta,28-olide have been isolated from the bark of Ploiarium alternifolium. Their structures were determined by spectroscopic methods and by chemical correlation with known compounds.