Lignans from Schisandra lancifolia

Two new neolignans, schilancifolignans D and E (1 and 2), together with eight known ones, were isolated from the leaves and stems of Schisandra lancifolia. The structures of 1 and 2 were elucidated by spectroscopic methods, including extensive 1D and 2D NMR techniques. Compounds 1 and 2 were tested for their anti-HIV-1 activities and cytotoxicity. Both showed significant potential cytotoxic ability and weak anti-HIV-1 activities.

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