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Paper | Regular issue | Vol 55, No. 4, 2001, pp.729-740
Published online, 1st January, 1970
DOI: 10.3987/COM-01-9166
Six New Heterocyclic Stilbene Oligomers from Stem Bark of Shorea hemsleyana

Toshiyuki Tanaka,* Tetsuro Ito, Ken-ichi Nakaya, Munekazu Iinuma, Yoshikazu Takahashi, Hiroshi Naganawa, and Soedarsono Riswan

*Gifu Prefectrual Institute of Health and Environmental Sciences, 1-1 Nakafudogaoka, Kakamigahara, Gifu 504-0838, Japan

Abstract

From the stem bark of Shorea hemsleyana (Dipterocarpaceae), four new stilbenoids with one or two dihydrofuran ring(s) [hemsleyanols C, D, hemsleyanosides E, F, and (-)-ampelopsin H] and a new stilbenoid with a carbonyl group (hemsleyanol E) were isolated. The structures including the relative configuration were elucidated on the basis of spectroscopic and chemical evidence.