© Georg Thieme Verlag Stuttgart · New York
Three New Dibenzocyclooctadiene Lignans from Kadsura longipedunculata
05 January 2007 (online)
Five dibenzocyclooctadiene lignans were isolated from the stems of Kadsura longipedunculata collected in Guangxi province. Three of them are new compounds, named benzoyl-, isovaleroyl-, and isobutyroylbinankadsurin A. Binankadsurin A was isolated from nature for the first time. The absolute configuration of isovaleroyloxokadsurane, a spirobenzofuranoid lignan from K. coccinea, was confirmed by chemical correlation with isovaleroylbinankadsurin A.
Kadsura longipedunculata - Schisandraceae - benzoylbinankadsurin A - isovaleroylbinankadsurin A - isobutyroylbinankadsurin A - isovaleroyloxokadsurane - absolute configuration