A STUDY ON THE CHEMICAL CONSTITUENTS OF THE LEAVES OF ILEX PUBESCENS HOOK ET ARN VAR GLABER CHANG Ⅲ. ELUCIDATION OF THE STRUCTURE OF GLABERIDE Ⅰ. A NEW LIGNAN COMPOUND

Crystalline phenolic constituents were isolated from the leaves of Ilex pubescens Hook et Arn var glaber Chang, used as a folk medicinal herb. They were identified as 3,4-dihydroxyacetophenone, hydroquinone, scopoletin, esculetin, homovanillic acid and vomifoliol.This paper describes a new lignan compound, to be designated as glaberide Ⅰ. Its structure was ascertained through IR, UV, NMR, MS and X-ray analyses.