Nuclear magnetic resonance signals of methyl groups in structural determination of triterpenes. 2α,3α- and 2β,3β-Dihydroxyolean-12-en-28-oic acids
Journal of the Chemical Society D: Chemical Communications Pub Date : , DOI:10.1039/C29700000369
Abstract
Structures previously assigned to the two cis-diols from osmium tetroxide oxidation of methyl olean-2,12-dien-28-oate should be interchanged; 2α,3α-dihydroxyolean-12-en-28-oic acid occurs in Shorea acuminata resin.
