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 journalArticle

9 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

Fingerprint

Uncaria
Catechin
Polyphenolic compounds
Indole Alkaloids

Keywords

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

ASJC Scopus subject areas

  • Analytical Chemistry
  • Organic Chemistry
  • Pharmacology

Cite this

Uncariagambiriine and gambircatechol : Novel constituents of Uncaria gambir leaves. / Yoshikado, Naomi; Taniguchi, Shoko; Kasajima, Naoki; Ohashi, Fumiaki; Doi, Kou Ichi; Shibata, Takashi; Yoshida, Takashi; Hatano, Tsutomu.

In: Heterocycles, Vol. 77, No. 2, 01.02.2009, p. 793-800.

Research output: Contribution to journalArticle

Yoshikado, N, Taniguchi, S, Kasajima, N, Ohashi, F, Doi, KI, Shibata, T, Yoshida, T & Hatano, T 2009, 'Uncariagambiriine and gambircatechol: Novel constituents of Uncaria gambir leaves', Heterocycles, vol. 77, no. 2, pp. 793-800. https://doi.org/10.3987/COM-08-S(F)73
Yoshikado, Naomi ; Taniguchi, Shoko ; Kasajima, Naoki ; Ohashi, Fumiaki ; Doi, Kou Ichi ; Shibata, Takashi ; Yoshida, Takashi ; Hatano, Tsutomu. / Uncariagambiriine and gambircatechol : Novel constituents of Uncaria gambir leaves. In: Heterocycles. 2009 ; Vol. 77, No. 2. pp. 793-800.
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