Home /Dimeric and Trimeric Hydrolyzable Tannins from Quercus coccifera and Quercus suber

Dimeric and Trimeric Hydrolyzable Tannins from Quercus coccifera and Quercus suber

TitleDimeric and Trimeric Hydrolyzable Tannins from Quercus coccifera and Quercus suber
Publication TypeJournal Article
Year of Publication2002
AuthorsIto, H., Yamaguchi K., Kim T-H., Khennouf S., Gharzouli K., & Yoshida T.
JournalJournal of Natural Products
Volume65
Pagination339-345
KeywordsNMR, Quercus coccifera, Quercus suber, structure (voyant), Tannins
Abstract

Three new hydrolyzable tannins, cocciferins D1 (1), D2 (2), and T1 (4), were isolated from the leaves of Quercus coccifera. Cocciferin D2 (2) and two additional new tannins, cocciferins D3 (3) and T2 (5), were also obtained from the leaves of Quercus suber. Their oligomeric structures were elucidated on the basis of spectroscopic methods and chemical evidence. Compounds 2, 3, and 5 were rare oligomers possessing glucose cores with both open-chain and pyranose forms.