, its peels possessed better special flavour, as well as various bioactivities, such as anti-inflammatory, anti-microbial and anti-tumour. In our chemical investigation on the peels of , two new lignans ( and ) and three known lignans (-) were isolated by silica gel column chromatography, ODS column and preparative HPLC and their structures were established as zanthlignans A and B (), (-)-asarinin (), phylligenin () and planispine A () through various spectroscopic techniques including UV, IR, HR-ESI-MS, NMR and CD methods.
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