title: 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 3beta,6alpha,16alpha,20(S),27-pentahydroxydammar-24(Z)-ene (1), 3beta-D-glucopyranosyloxy-6alpha,16alpha,20(S),27-tetrahydroxydammar-24(Z)-ene (2) and 2alpha,3beta,19alpha,30-tetrahydroxyurs-12-en-24,28-dioic acid 28-O-beta-D-glucopyranosyl ester (3). respectively, on the basis of detailed spectroscopic studies.
authors.affiliation: HEJ Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Pakistan.
authors.forename: Amir
authors.initials: A
authors.lastname: Ahmed
authors.forename: Muhammad
authors.initials: M
authors.lastname: Asim
authors.forename: Muhammad
authors.initials: M
authors.lastname: Zahid
authors.forename: Akbar
authors.initials: A
authors.lastname: Ali
authors.forename: Viqar Uddin
authors.initials: VU
authors.lastname: Ahmad
mesh_terms: D032381:Corchorus; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D018514:Plant Structures; D013729:Terpenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D010936:Plant Extracts; D013729:Terpenes