New dimeric flavans from gambir, an extract of Uncaria gambir

Shoko Taniguchi, Kayo Kuroda, Naomi Yoshikado, Kou ichi Doi, Masahiro Tanabe, Takashi Shibata, Takashi Yoshida, Tsutomu Hatano

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Three new dimeric flavans, catechin-(4α-→8)-ent-epicatechin (7), gambirflavan D1 (8), and gambirflavan D2 (9), were isolated from gambir (an extract from the leaves and young twigs of Uncaria gambir), and their structures were determined based on spectroscopic and chemical data.

Original languageEnglish
Pages (from-to)595-605
Number of pages11
Issue numberC
Publication statusPublished - Dec 31 2007

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry


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