Lignan and neolignan glucosides, and tachioside 2′- O-4″- O-methylgallate from the leaves of Glochidion rubrum.

Thirteen compounds ( 1– 13) were isolated from a MeOH extract of leaves of Glochidion rubrum. The structures of four new compounds were elucidated to be (−)-isolariciresinol 2a- O-β- d-glucopyranoside ( 1), (7 R,8 S)- and (7 R,8 R)-4,7,9,9′-tetrahydroxy-3,3′-dimethoxy-8- O-4′-neolignan 7- O-β- d-glucopyranosides ( 2 and 3, respectively), and tachioside 2′- O-4″- O-methylgallate ( 4) on detailed inspection of one- and two-dimensional NMR spectral data. [ABSTRACT FROM AUTHOR]