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A New Dimeric Stilbenoid with a Five-Membered Lactone Ring from Shorea hemsleyana

✍ Scribed by Tetsuro Ito; Toshiyuki Tanaka; Munekazu Iinuma; Ken-ichi Nakaya; Yoshikazu Takahasi; Hikaru Nakamura; Hiroshi Naganawa; Soedarsono Riswan

Publisher: John Wiley and Sons
Year: 2003
Tongue: German
Weight: 155 KB
Volume: 86
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.200390283

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✦ Synopsis

Abstract

From the stem bark of Shorea hemsleyana, a new dimeric stilbenoid with a five‐membered lactone ring, shorealactone (1) was isolated. The absolute configuration was determined by means of 2D NMR techniques and X‐ray crystal‐structure analysis of its 4‐bromobenzoyl derivative 1e by means of anomalous scattering of the Br‐atom.

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