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

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-β-D-glucopyranoside (1), dihydrodehydrodiconiferyl alcohol 4-, 9- and 9'-O-β-D-glucopyranosides (2-4, respectively), (+)-isolarisiresinol 2a-O-β-D-glucopyranoside (5), and dihydrodehydrodiconiferyl alcohol 9-O-sulfate (6), and 5 and 6 were new compounds.