TANNINS AND RELATED-COMPOUNDS .121. PHENYLPROPANOID-SUBSTITUTED CATECHINS FROM CASTANOPSIS-HYSTRIX AND STRUCTURE REVISION OF CINCHONAINS

Authors
CHEN HF TANAKA T NONAKA GI FUJIOKA T MIHASHI K
Citation
Hf. Chen et al., TANNINS AND RELATED-COMPOUNDS .121. PHENYLPROPANOID-SUBSTITUTED CATECHINS FROM CASTANOPSIS-HYSTRIX AND STRUCTURE REVISION OF CINCHONAINS, Phytochemistry, 33(1), 1993, pp. 183-187
Citations number
8
Categorie Soggetti
Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
33
Issue
1
Year of publication
1993
Pages
183 - 187
Database
ISI
SICI code
0031-9422(1993)33:1<183:TAR.PC>2.0.ZU;2-B
Abstract
Two new and two known complex flavan-3-ols, containing an additional p henylpropanoid (C6-C3) unit in the molecule, have been isolated from t he leaves of Castanopsis hystrix. The structures including absolute st ereochemistry were elucidated on the basis of spectroscopic evidence a nd also by synthesis. In addition, comparison of the CD spectral data of these compounds with those of previously known complex flavan-3-ols , cinchonains, has led to the revision of their structures.