Elaeocarpusin, A Proto-Type of Geraniin From Geranium Thunbergii

Genichiro Nonaka, Satoshi Morimoto, Itsuo Nishioka

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The co-occurrence of geraniin (2) and a novel ellagitannin, elaeocarpusin (1) in Geranium thunbergii has been demonstrated. In addition, enzymatic transformation of 1 into 2 has been achieved, leading to the evidence that dehydroascorbic acid (4) participates as a co-enzyme in the oxidative metabolism of the hexahydroxydiphenoyl group to the corresponding dehydro group. Furthermore, flavan-3-ol derivatives and gallotannins containing a glucose and a quinic acid core have been isolated, together with previously reported ellagitannins.

Original languageEnglish
Pages (from-to)941-943
Number of pages3
JournalChemical and Pharmaceutical Bulletin
Volume34
Issue number2
DOIs
Publication statusPublished - Jan 1 1986

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Drug Discovery

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