Dimeric and trimeric hydrolyzable tannins from Quercus coccifera and Quercus suber.
作者： Hideyuki Ito , Koji Yamaguchi , Tae-Hoon Kim , Seddik Khennouf , Kamel Gharzouli
DOI: 10.1021/NP010465I
关键词:
摘要: Three new hydrolyzable tannins, cocciferins D1 (1), D2 (2), and T1 (4), were isolated from the leaves of Quercus coccifera. Cocciferin (2) two additional D3 (3) T2 (5), also obtained suber. Their oligomeric structures elucidated on basis spectroscopic methods chemical evidence. Compounds 2, 3, 5 rare oligomers possessing glucose cores with both open-chain pyranose forms.
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