Journal
MAGNETIC RESONANCE IN CHEMISTRY
Volume 48, Issue 5, Pages 392-396Publisher
WILEY-BLACKWELL
DOI: 10.1002/mrc.2582
Keywords
(1)H NMR; (13)C NMR; Momordica charantia; Cucurbitaceae; cucurbitane triterpene glycoside; momordicosides U-W
Funding
- Ministry of Education, Science and Technology [20090093815]
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The chemical study of Momordica charantia fruits led to the isolation of three new cucurbitane triterpene glycosides, momordicosides U, V, and W (1-3). The structures of these compounds were determined to be (19R, 23R)-5 beta, 19-epoxy-19-methoxycucurbita-6,24-diene-3 beta, 23-diol 3-O-beta-D-allopyranoside (1), (23R)-5 beta, 19-epoxycucurbita-6,24-diene-3 beta, 23-diol 3-O-beta-D-allopyranoside (2), and (19R)-5 beta, 19-epoxy-19,25-dihydroxycucurbita-6,23(E)-diene-3 beta-ol 3-O-beta-D-glucopyranoside (3), by chemical and spectroscopic methods. Copyright (C) 2010 John Wiley & Sons, Ltd.
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