Rhyncosides A-F,Phenolic Constituents from the Chinese Mangrove Plant Bruguiera sexangula var.rhynchopetala

摘要

Chemical investigation on the stem of a Chinese mangrove plant Bruguiera sexangula var.rhynchopetala (Rhizophoraceae) resulted in the isolation and characterization of four new phenolic glycosides rhyncosides A- D (1-4),and two new lignan derivatives namely rhyncosides E-F (5-6),along with twelve known phenolic constituents.Their structures were determined by extensive spectroscopic data analyses.