New triterpenoids from Corchorus trilocularis

Abstract

Two new tetracyclic triterpenoid trilocularol A and trilocularol A 3-glucoside and one pentacyclic triterpenoid tirlocularoside A were isolated from Corchorus trilocularis L., their structure were elucidated as 3β,6α,16α,20(S),27-pentahydroxydammar-24(Z)-ene (1), 3β-D-glucopyranosyloxy-6α,16α,20(S),27-tetrahydroxydammar-24(Z) -ene (2) and 2α,3β,19α,30-tetrahydroxyurs-12-en-24,28-dioic acid 28-O-β-D-glucopyranosyl ester (3). respectively, on the basis of detailed spectroscopic studies. © 2003 Pharmaceutical Society of Japan.