Cucurbitane-type triterpenoids from Momordica charantia.
Five new cucurbitane-type triterpenes, (23E)-25-methoxycucurbit-23-ene-3beta,7beta-diol (1), (23E)-cucurbita-5,23,25-triene-3beta,7beta-diol (2), (23E)-25-hydroxycucurbita-5,23-diene-3,7-dione (3), (23E)-cucurbita-5,23,25-triene-3,7-dione (4), and (23E)-5beta,19-epoxycucurbita-6,23-diene-3beta,25-diol (5), together with one known triterpene, (23E)-5beta,19-epoxy-25-methoxycucurbita-6,23-dien-3beta-ol (6), have been isolated from the methanol extract of the stems of Momordica charantia. The structures of the new compounds were elucidated by spectroscopic methods.
Chang
Chi-I
CI
Graduate Institute of Biotechnology, National Pingtung University of Science and Technology, Pingtung 912, Taiwan, Republic of China.
Chen
Chiy-Rong
CR
Liao
Yun-Wen
YW
Cheng
Hsueh-Ling
HL
Chen
Yo-Chia
YC
Chou
Chang-Hung
CH
D015394:Molecular Structure; D029777:Momordica charantia / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013624:Taiwan; D014315:Triterpenes / Q000737:chemistry / Q000145:classification / Q000302:isolation & purification
D014315:Triterpenes