C-glycosidic flavonoids from Cassia occidentalis

Tsutomu Hatano; Seiki Mizuta; Hideyuki Ito; Takashi Yoshida

doi:10.1016/S0031-9422(99)00437-9

C-glycosidic flavonoids from Cassia occidentalis

Tsutomu Hatano, Seiki Mizuta, Hideyuki Ito, Takashi Yoshida

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

Three new C-glycosidic flavonoids, cassiaoccidentalins A, B and C, were isolated from aerial parts of Cassia occidentalis, and their structures with a 3-keto sugar were established on the basis of spectroscopic and chemical evidence. They showed signals of two conformers in their ¹H- and ¹³C-NMR spectra due to hindered rotation around their C-glycosidic linkages, and the conformations in solution were analyzed by NMR spectroscopic analyses.

Original language	English
Pages (from-to)	1379-1383
Number of pages	5
Journal	Phytochemistry
Volume	52
Issue number	7
DOIs	https://doi.org/10.1016/S0031-9422(99)00437-9
Publication status	Published - Dec 1 1999

Keywords

Cassia occidentalis
Cassiaoccidentalin A
Cassiaoccidentalin B
Cassiaoccidentalin C
Conformation
Flavonoid
Leguminosae

ASJC Scopus subject areas

Biochemistry
Molecular Biology
Plant Science
Horticulture

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title = "C-glycosidic flavonoids from Cassia occidentalis",

abstract = "Three new C-glycosidic flavonoids, cassiaoccidentalins A, B and C, were isolated from aerial parts of Cassia occidentalis, and their structures with a 3-keto sugar were established on the basis of spectroscopic and chemical evidence. They showed signals of two conformers in their 1H- and 13C-NMR spectra due to hindered rotation around their C-glycosidic linkages, and the conformations in solution were analyzed by NMR spectroscopic analyses.",

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author = "Tsutomu Hatano and Seiki Mizuta and Hideyuki Ito and Takashi Yoshida",

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T1 - C-glycosidic flavonoids from Cassia occidentalis

AU - Hatano, Tsutomu

AU - Mizuta, Seiki

AU - Ito, Hideyuki

AU - Yoshida, Takashi

PY - 1999/12/1

Y1 - 1999/12/1

N2 - Three new C-glycosidic flavonoids, cassiaoccidentalins A, B and C, were isolated from aerial parts of Cassia occidentalis, and their structures with a 3-keto sugar were established on the basis of spectroscopic and chemical evidence. They showed signals of two conformers in their 1H- and 13C-NMR spectra due to hindered rotation around their C-glycosidic linkages, and the conformations in solution were analyzed by NMR spectroscopic analyses.

AB - Three new C-glycosidic flavonoids, cassiaoccidentalins A, B and C, were isolated from aerial parts of Cassia occidentalis, and their structures with a 3-keto sugar were established on the basis of spectroscopic and chemical evidence. They showed signals of two conformers in their 1H- and 13C-NMR spectra due to hindered rotation around their C-glycosidic linkages, and the conformations in solution were analyzed by NMR spectroscopic analyses.

KW - Cassia occidentalis

KW - Cassiaoccidentalin A

KW - Cassiaoccidentalin B

KW - Cassiaoccidentalin C

KW - Conformation

KW - Flavonoid

KW - Leguminosae

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JO - Phytochemistry

JF - Phytochemistry

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