Isolation and Structure of a New Phenolic Glycoside, Neocretanin, from Chestnut Galls

Abstract

A tannic substance named neocretanin was isolated from chestnut galls by chromatographic separation. The chemical structure of neocretanin was established as l-O-(2′,6′-dihydroxy-4′-formyl)-phenyl-6-O-gaIloyl-β-d-giucopyranose (I) on the basis of spectral analyses and enzymatic hydrolyses.