Rugosin A, B, C and praecoxin A, tannins having a valoneoyl group

Takuo Okuda, Tsutomu Hatano, Kazufumi Yazaki, Noboru Ogawa

Research output: Contribution to journalArticle

68 Citations (Scopus)


New hydrolyzable tannins, rugosin A (1), B (2), C (3) from Rosa rugosa, and 3 and praecoxin A (7) from Stachyuvus praeaox, were isolated, and their structures, including the valoneoyl group, were elucidated.

Original languageEnglish
Pages (from-to)4230-4233
Number of pages4
JournalChemical and Pharmaceutical Bulletin
Issue number11
Publication statusPublished - 1982



  • praecoxin A
  • Rosa rugosa
  • Rosaceae
  • rugosin A
  • rugosin B
  • rugosin C
  • Stachyuraceae
  • Stachyurus praecox
  • tannin
  • valoneoyl group

ASJC Scopus subject areas

  • Chemistry(all)
  • Drug Discovery

Cite this