Abstract
Phytochemical investigation of the ethanol extract from the leaves of Momordica charantia L. led to the isolation of two new (1, 2) and four known (3–6) cucurbitane-type triterpenoids. Their structures were elucidated on the basis of extensive analyses of spectroscopic data including IR, UV, MS, 1D, and 2D NMR. Also the absolute configurations of momordicines I (3) and II (4) were determined for the first time by application of the modified Mosher's method, acid hydrolysis, and GC analysis.
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