Dibenzocyclooctadiene Lignans from Schisandra lancifolia and Their Anti-human Immunodeficiency Virus-1 Activities

Abstract

Three new dibenzocyclooctadiene lignans, schilancifolignans A—C (1—3), together with thirteen known ones, were isolated from the leaves and stems of Schisandra lancifolia. The structures of 1—3 were elucidated by spectroscopic methods, including extensive 1D- and 2D-NMR techniques. Compounds 1—3 were tested for their anti-human immunodeficiency virus-1 activities and showed weak bioactivities.