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).
Cucurbitaceae, triterpenoid saponins, Gynostemma pentaphyllum
Publication DOI: 10.1016/S0031-9422(96)00577-8Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Department of Phytochemistry, Shanghai Institute of Materia Medica, Academia Sinica, Shanghai 200031, China
Methods: 13C NMR, 1H NMR, NMR-2D, IR, FAB-MS, sugar analysis, TLC, chemical methods, NMR-1D, extraction, acidic hydrolysis
Found