Structure of a New Phenolic Glycoside, Chesnatin, from Chestnut Galls

Abstract

The chemical structure of the tannic substance chesnatin isolated from chestnut galls was presented as I on the basis of spectral data and its enzymatic hydrolysis products, although it remained to be established which carboxyl group of dehydrodigallic acid was esterified. Chesnatin was found in nature for the first time.