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 › peer-review

11 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

Keywords

Catechin
Indole Alkaloid
Polyphenol
Rubiaceae
Uncaria gambir

ASJC Scopus subject areas

Analytical Chemistry
Pharmacology
Organic Chemistry

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10.3987/COM-08-S(F)73

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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.",

keywords = "Catechin, Indole Alkaloid, Polyphenol, Rubiaceae, Uncaria gambir",

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T1 - Uncariagambiriine and gambircatechol

T2 - Novel constituents of Uncaria gambir leaves

AU - Yoshikado, Naomi

AU - Taniguchi, Shoko

AU - Kasajima, Naoki

AU - Ohashi, Fumiaki

AU - Doi, Kou Ichi

AU - Shibata, Takashi

AU - Yoshida, Takashi

AU - Hatano, Tsutomu

PY - 2009/2/1

Y1 - 2009/2/1

N2 - 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.

AB - 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.

KW - Catechin

KW - Indole Alkaloid

KW - Polyphenol

KW - Rubiaceae

KW - Uncaria gambir

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Uncariagambiriine and gambircatechol: Novel constituents of Uncaria gambir leaves

Abstract

Keywords

ASJC Scopus subject areas

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