title: Norcucurbitane triterpenoids from the fruits of Momordica charantia var. abbreviata.
abstract: Two new 27-norcucurbitane triterpenoids, 27-nor-3beta-hydroxy-7beta-methoxycucurbita-5,23(E)-dien-25-one (1) and 27-nor-3beta-hydroxy-5beta,19-epoxycucurbita-6,23(E)-dien-25-one (2), together with two known cucurbitane triterpenes, 23(E)-7beta-methoxycucurbita-5,23,25-trien-3beta-ol (3) and 5beta,19-epoxy-25-methoxycucurbita-6,23(E)-dien-3beta-ol (4), were isolated from the fruits of Momordica charantia var. abbreviata. Their structures were determined by analysis of spectroscopic data and comparison with the data of known analogues.
authors.affiliation: Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan.
authors.forename: Yun-Wen
authors.initials: YW
authors.lastname: Liao
authors.forename: Chiy-Rong
authors.initials: CR
authors.lastname: Chen
authors.forename: Jue-Liang
authors.initials: JL
authors.lastname: Hsu
authors.forename: Yun-Sheng
authors.initials: YS
authors.lastname: Lin
authors.forename: Hsueh-Ling
authors.initials: HL
authors.lastname: Cheng
authors.forename: Wen-Ling
authors.initials: WL
authors.lastname: Shih
authors.forename: Yueh-Hsiung
authors.initials: YH
authors.lastname: Kuo
authors.forename: Chi-I
authors.initials: CI
authors.lastname: Chang
mesh_terms: D005638:Fruit / Q000737:chemistry; D015394:Molecular Structure; D029777:Momordica charantia / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C579668:27-nor-3beta-hydroxy-5beta,19-epoxycucurbita-6,23(E)-dien-25-one; C579669:27-nor-3beta-hydroxy-7beta-methoxycucurbita-5,23(E)-dien-25-one; D014315:Triterpenes