4 NEW C-GLYCOSIDIC ELLAGITANNINS, CASTACRENINS D-G, FROM JAPANESE CHESTNUT WOOD (CASTANEA-CRENATA SIEB. ET ZUCC.)

Authors
TANAKA T UEDA N SHINOHARA H NONAKA G KOUNO I
Citation
T. Tanaka et al., 4 NEW C-GLYCOSIDIC ELLAGITANNINS, CASTACRENINS D-G, FROM JAPANESE CHESTNUT WOOD (CASTANEA-CRENATA SIEB. ET ZUCC.), Chemical and Pharmaceutical Bulletin, 45(11), 1997, pp. 1751-1755
Citations number
18
Categorie Soggetti
Pharmacology & Pharmacy",Chemistry
Journal title
Chemical and Pharmaceutical Bulletin → ACNP
ISSN journal
00092363
Volume
45
Issue
11
Year of publication
1997
Pages
1751 - 1755
Database
ISI
SICI code
0009-2363(1997)45:11<1751:4NCECD>2.0.ZU;2-J
Abstract
In the course of studies on polyphenol metabolism in wood, four new C- glycosidic ellagitannins named castacrenins D-G were isolated from the wood of the Japanese chestnut tree (Castanea crenata). Castacrenins D and F are related to vescalagin and have a gallic acid and an ellagic acid moiety, respectively. Castacrenins E and G are oxidative metabol ites of castacrenins D and F, respectively, in which a pyrogallol ring of each C-glycosidic ellagitannin unit is replaced by a cyclopentenon e ring.