Cowaniin, a C-Glucosidic Ellagitannin Dimer Linked through Catechin from Cowania mexicana

Hideyuki Ito; Masateru Miyake; Eisei Nishitani; Kyoko Miyashita; Morio Yoshimura; Takashi Yoshida; Midori Takasaki; Takao Konoshima; Mutsuo Kozuka; Tsutomu Hatano

doi:10.1248/cpb.55.492

Notes

Cowaniin, a C-Glucosidic Ellagitannin Dimer Linked through Catechin from Cowania mexicana

Hideyuki Ito, Masateru Miyake, Eisei Nishitani, Kyoko Miyashita, Morio Yoshimura, Takashi Yoshida, Midori Takasaki, Takao Konoshima, Mutsuo Kozuka, Tsutomu Hatano

著者情報

キーワード: Cowania mexicana, Rosaceae, cowaniin, complex tannin, C-glucosidic ellagitannin dimer, Epstein-Barr virus

ジャーナルフリー

2007 年 55 巻 3 号 p. 492-494

DOI https://doi.org/10.1248/cpb.55.492

詳細

抄録

A new complex tannin, cowaniin (1) was isolated from the leaves and stems of Cowania mexicana (Rosaceae), and its structure was characterized as novel C-glucosidic tannin dimer linked through (+)-catechin on the basis of spectral and chemical evidence. The inhibitory effect on activation of the Epstein-Barr virus early antigen was assessed for cowaniin. Six known polyphenols and related compounds, including a nitrile glucoside, purshianin, were also characterized.

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）