Tannins of Coriaria japonica A. GRAY. III. Structures of coriariins G, H, I and J

Tsutomu HATANO; Rieko YOSHIHARA; Shin HATTORI; Masao YOSHIZAKI; Tetsuro SHINGU; Takuo OKUDA

doi:10.1248/cpb.40.1703

著者情報

キーワード: tannin, hydrolyzable tannin, coriariin G, coriariin H, coriariin I, coriariin J, Coriaria japonica, sedoheptulose, depsidone, dehydrodigalloyl group

ジャーナルフリー

1992 年 40 巻 7 号 p. 1703-1710

DOI https://doi.org/10.1248/cpb.40.1703

詳細

抄録

For new hydrolyzable tannins, coriariins G, H, I and J. were isolated from the leaf of Coriaria japonica (Coriariaceae). Structures 1, 2 and 3, having a sedoheptulose residue, were assigned for coriariins G, H and I, respectively. Structure 4, having a depsidone-forming dehydrodigalloyl group, was assigned for coriariin J, based on the chemical correlation with coriariin B (5). The orientation of the dehydrodigalloyl group in 5 was confirmed by ¹H-¹³C long-range shift-correlation spectroscopy.

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）