EUPHORBIN E, A HYDROLYZABLE TANNIN DIMER OF HIGHLY OXIDIZED STRUCTURE, FROM EUPHORBIA HITRA

Takashi YOSHIDA; Osamu NAMBA; Ling CHEN; Takuo OKUDA

doi:10.1248/cpb.38.1113

Takashi YOSHIDA, Osamu NAMBA, Ling CHEN, Takuo OKUDA

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Keywords: Euphorbia hirta, Enphorbiaceae, tannin, dimeric hydrolyzable tannin, euphorbin E, dehydroeuphorbinoyl group

JOURNAL FREE ACCESS

1990 Volume 38 Issue 4 Pages 1113-1115

DOI https://doi.org/10.1248/cpb.38.1113

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Abstract

A novel dimeric hydrolyzable tannin, euphorbin E, was isolated from the leaves of Euphorbia hirta. Its structure (1), having two dehydrohexahydroxydiphenoyl groups, and a dehydroeuphorbinoyl group as a novel connecting unit between two polyaroylglucose cores, was determined based on spectral and chemical evidence.

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