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Pelargoniins, new ellagitannins fromPelargonium reniforme

Authors
Journal
Phytochemistry
0031-9422
Publisher
Elsevier
Publication Date
Volume
54
Issue
7
Identifiers
DOI: 10.1016/s0031-9422(00)00176-x
Keywords
  • Pelargonium Reniforme
  • Geraniaceae
  • Ellagitannins
  • Pelargoniins
  • Isocorilagin
  • Phyllanthusiin E Methyl Ester
Disciplines
  • Design

Abstract

Abstract The range of natural ellagitannins is extended by identification of five new metabolites with 1C 4 glucose core, designated as pelargoniins A–D and isocorilagin, and the new phyllanthusiin E methyl ester. They are accompanied in the aerial parts of Pelargonium reniforme by two known structurally related metabolites, corilagin and phyllanthusiin C, two phenolcarboxylic acids, brevifolincarboxylic acid and phyllanthusiin E, the gallotannin 1- O-galloyl-β- D-glucopyranose, and the ellagitannins strictinin and isostrictinin having a 4C 1-glucose core. The structures of these compounds were established from spectroscopic studies. This is the first example of the co-occurrence of ellagitannins with 4C 1 and 1C 4 glucopyranose core demonstrated for a member of the Geraniaceae.

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