Furofuran lignans from the bark of Magnolia kobus

초록

A new furofuran lignan (1) along with four knownones (2-5) were isolated from the bark of Magnolia kobus. Their structures were elucidated as (+)-2 alpha-(3 ',4 '-dimethoxyphenyl)-6 alpha-(3 ''-hydroxy-4 '',5 ''-dimethoxyphenyl)-3,7-dioxabicyclo[3.3.0]octane (1), (+)-sesamin (2), (+)-yangambin (3), (+)-kobusin (4), and (+)-eudesmin (5) on the basis of their comprehensive spectroscopic analysis, including 2D NMR, and by comparison of their spectral data with those of related compounds.

키워드