Three new arylnaphthalene lignans from Schisandra propinqua var. sinensis

Three new arylnaphthalene lignans, named sinensisins A-C (1-3), together with three known compounds, were isolated from the aerial parts of Schisandra propinqua var. sinensis. Their structures were established by spectroscopic methods, and compound 1 exhibited weak anti-HIV-1 activity with an Tl value of 6.7. (C) 2011 Elsevier B.V. All rights reserved.