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

doi:10.3987/COM-08-S(F)73

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

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 language	English
Pages (from-to)	793-800
Number of pages	8
Journal	Heterocycles
Volume	77
Issue number	2
DOIs	https://doi.org/10.3987/COM-08-S(F)73
Publication status	Published - Feb 1 2009

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Keywords

Catechin
Indole Alkaloid
Polyphenol
Rubiaceae
Uncaria gambir

ASJC Scopus subject areas

Analytical Chemistry
Organic Chemistry
Pharmacology

Cite this

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

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AU - Yoshikado, Naomi

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AU - Ohashi, Fumiaki

AU - Doi, Kou Ichi

AU - Shibata, Takashi

AU - Yoshida, Takashi

AU - Hatano, Tsutomu

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10.3987/COM-08-S(F)73