Uncariagambiriine and gambircatechol: Novel constituents of Uncaria gambir leaves

Naomi Yoshikado, Shoko Taniguchi, Naoki Kasajima, Fumiaki Ohashi, Kou Ichi Doi, Takashi Shibata, Takashi Yoshida, Tsutomu Hatano

Research output: Contribution to journal › Article

10 Citations (Scopus)

Abstract

Two new polyphenolic compounds, uncariagambiriine (1) and gambircatechol (2), were isolated from Uncaria gambir leaves, along with dehydrodicatechin A (3), catechin-(8→6')-catechin (4), catechin-(6→6')-catechin (5), and (+)-catechin (6). The structures of the new compounds, one of which is composed of an indole alkaloid and (+)-catechin, were established based on spectroscopic data.

Original languageEnglish
Pages (from-to)793-800
Number of pages8
JournalHeterocycles
Volume77
Issue number2
DOIs
Publication statusPublished - Feb 1 2009

Keywords

  • Catechin
  • Indole Alkaloid
  • Polyphenol
  • Rubiaceae
  • Uncaria gambir

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry

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    Yoshikado, N., Taniguchi, S., Kasajima, N., Ohashi, F., Doi, K. I., Shibata, T., Yoshida, T., & Hatano, T. (2009). Uncariagambiriine and gambircatechol: Novel constituents of Uncaria gambir leaves. Heterocycles, 77(2), 793-800. https://doi.org/10.3987/COM-08-S(F)73