Isolation of Lignan Glucosides and Neolignan Sulfate from the Leaves of Glochidion zeylanicum (Gaertn) A. Juss.

Hideaki Otsuka, Eiji Hirata, Takakazu Shinzato, Yoshio Takeda

Chemical and Pharmaceutical Bulletin · 2000 · 49 citations · 0 references

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Abstract

Six lignan and neolignan derivatives (1-6) were isolated from the n-BuOH-soluble fraction of a MeOH extract of the leaves of Glochidion zeylanicum. On the basis of spectral data, their structures were elucidated to be (+)-isolarisiresinol 3a-O-beta-glucopyranoside (1), dihydrodehydrodiconiferyl alcohol 4-, 9- and 9'-O-beta-D-glucopyranosides (2-4, respectively), (+)-isolarisiresinol 2a-O-beta-D-glucopyranoside (5), and dihydrodehydrodiconiferyl alcohol 9-O-sulfate (6), and 5 and 6 were new compounds.