Studies on the Chemical Constituents of Kadsura longipedunculata: Isolation and Structure Elucidation of Five New Lignans

Abstract

Five new dibenzocyclooctadiene lignans, R(+)-wuweizisu C (1), kadsuranin (2), R(+)-gomisin M₁ (3), R(+)-angeloylgomisin M₁ (4) and angeloylgomisin R (5) were isolated from the ethereal extract of roots and stems of Kadsura longipedunculata Finet et Gagnep. Their structures were elucidated on the basis of chemical and spectral analysis.