Acta Crystallographica Section E (Aug 2009)
Benzyl 3-dehydroxy-1,2,5-oxadiazolo[3′,4′:2,3]oleanolate
Abstract
The title compound, C37H50N2O3, is a benzyl ester derivative of oleanolic acid, a pentacyclic triterpene, with a five-membered oxadiazole ring fused to the ring A. The triterpene A and C rings adopt slightly distorted half-chair conformations, whereas the remaining three six-membered rings are in chair forms.