Tannins of Stachyurus Species. III. Stachyuranins A, B and C, Three New Complex Tannins from Stachyurus praecox Leaves

Li Han, Tsutomu Hatano, Takuo Okuda, Takashi Yoshida

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Three new complex tannins, stachyuranins A (1), B (2) and C (3), were isolated from the leaves of Stachyurus praecox (Stachyuraceae), and their structures, each consisting of a catechin or gallocatechin residue and a monomeric hydrolyzable tannin moiety, were assigned. Structures 1 and 2 lack a C-C linkage between glucose C-1 and the aroyl group at glucose 0–2, suggesting that they may be biogenetic precursors of complex tannins with the C-C linkage.

Original languageEnglish
Pages (from-to)2109-2114
Number of pages6
JournalChemical and Pharmaceutical Bulletin
Volume43
Issue number12
DOIs
Publication statusPublished - Jan 1 1995

Keywords

  • Stachyuraceae
  • Stachyurus praecox
  • stachyuranin A,B,C
  • tannin

ASJC Scopus subject areas

  • Chemistry(all)
  • Drug Discovery

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