Abstract

Three novel dammarane glycosides together with six known compounds were isolated from a methanol extract of the aerial parts of Gynostemma pentaphyllum. Their structures were elucidated by one- and two-dimensional NMR experiments, including 1H 1H correlation spectroscopy (DQFCOSY and TOCSY) and 1H 13C heteronuclear correlation (HMQC and HMBC).

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