Constituents of Geranium thunbergii Sieb. et Zucc. XV. Modified dehydroellagitannins, geraniinic acids B and C, and phyllanthusiin F

Hideyuki Ito, Tsutomu Hatano

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Three new hydrolyzable tannins, geraniinic acids B and C, and phyllanthusiin F, were isolated from the water-soluble portion of 70% aqueous acetone homogenate of the Geranium thunbergii leaves and their structures were determined by spectroscopic and chemical methods. These tannins are regarded as modified metabolites of geraniin, a major component of this plant. Phyllanthusiins, which are tannins characteristic of the Phyllanthus species of Euphorbiaceae, were also isolated from this plant.

Original languageEnglish
Pages (from-to)1148-1151
Number of pages4
JournalChemical and Pharmaceutical Bulletin
Volume47
Issue number8
Publication statusPublished - 1999

Fingerprint

Geranium
Tannins
Phyllanthus
Hydrolyzable Tannins
Euphorbiaceae
Plant Structures
Acids
Metabolites
Acetone
Water

Keywords

  • Geraniaceae
  • Geraniinic acid B
  • Geraniinic acid C
  • Geranium thunbergii
  • Modified dehydroellagitannin
  • Phyllanthusiin F

ASJC Scopus subject areas

  • Chemistry(all)
  • Organic Chemistry
  • Drug Discovery
  • Pharmacology

Cite this

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T1 - Constituents of Geranium thunbergii Sieb. et Zucc. XV. Modified dehydroellagitannins, geraniinic acids B and C, and phyllanthusiin F

AU - Ito, Hideyuki

AU - Hatano, Tsutomu

PY - 1999

Y1 - 1999

N2 - Three new hydrolyzable tannins, geraniinic acids B and C, and phyllanthusiin F, were isolated from the water-soluble portion of 70% aqueous acetone homogenate of the Geranium thunbergii leaves and their structures were determined by spectroscopic and chemical methods. These tannins are regarded as modified metabolites of geraniin, a major component of this plant. Phyllanthusiins, which are tannins characteristic of the Phyllanthus species of Euphorbiaceae, were also isolated from this plant.

AB - Three new hydrolyzable tannins, geraniinic acids B and C, and phyllanthusiin F, were isolated from the water-soluble portion of 70% aqueous acetone homogenate of the Geranium thunbergii leaves and their structures were determined by spectroscopic and chemical methods. These tannins are regarded as modified metabolites of geraniin, a major component of this plant. Phyllanthusiins, which are tannins characteristic of the Phyllanthus species of Euphorbiaceae, were also isolated from this plant.

KW - Geraniaceae

KW - Geraniinic acid B

KW - Geraniinic acid C

KW - Geranium thunbergii

KW - Modified dehydroellagitannin

KW - Phyllanthusiin F

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