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■ Revised Structure of Isoterchebin, Isolated from Cornus officinalis

Takuo Okuda,* Tsutomu Hatano, and Tsutomu Yasui

*Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Okayama 700-8530, Japan

Abstract

A dehydroellagitannin isolated from the fruit of Cornus officinalis, whose structure is assigned as 1,2,3-tri-O-galloyl-4,6-O-dehydrohexahydroxydiphenoyl-β-D-glucopyranose (I), is considered to be identical as isoterchebin which had been presumed to have structure (V).