From the leaves and stems of Kadsura longipedunculata Finet et Gagnep (Schisandraceae), a new triterpenoid, schisanlactone E (1), and two new lignans, 9‐(β‐D‐glucopyranosyloxy)‐3′‐methoxy‐3,4‐(methylenedioxy)‐7,9′‐epoxylignan‐4′‐ol (3) and 3‐methoxy‐3′,4′‐(methylenedioxy)‐9,9′‐epoxylignan‐4,7′‐diol (4), together with seven known compounds, were isolated. Their structures were elucidated by analysis of spectroscopic evidence including extensive 2D‐NMR data.
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Pu et al. (2007) studied this question.
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