Tannins of Coriaria japonica A. Gray. III. Structures of Coriariins G, H, I and J

Tsutomu Hatano, Rieko Yoshihara, Shin Hattori, Takuo Okuda, Masao Yoshizaki, Tetsuro Shingu

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Four 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.

Original languageEnglish
Pages (from-to)1703-1710
Number of pages8
JournalChemical and Pharmaceutical Bulletin
Volume40
Issue number7
DOIs
Publication statusPublished - Jan 1 1992

Keywords

  • Coriaria japonica
  • Keywords tannin
  • coriariin G
  • coriariin H
  • coriariin I
  • coriariin J
  • dehydrodigalloyl group
  • depsidone
  • hydrolyzable tannin
  • sedoheptulose

ASJC Scopus subject areas

  • Chemistry(all)
  • Drug Discovery

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