Monomeric and dimeric hydrolysable tannins of Tamarix nilotica

Mohamed A.A. Orabi, Shoko Taniguchi, Tsutomu Hatano

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

An ellagitannin monomer, nilotinin M1 (1), and three dimers, nilotinins D1 (2), D2 (3), and D3 (4), were isolated from leaves of Tamarix nilotica (Ehrenb.) Bunge. Structures were elucidated based on analysis of spectroscopic data and chemical correlations with known compounds. In addition, six known tannins, hirtellin A (5) (dimer), remurin A (6), remurin B (7), 1,3-di-O-galloyl-4,6-O-(S)-hexahydroxydiphenoyl-β-d-glucose (8), gemin D (9), and hippomanin A (10) (monomers), were isolated for the first time from this plant species. The reported 13C NMR assignments of the dehydrodigalloyl moiety and glucose cores of 5 are revised, and the 13C NMR spectroscopic data for 6 and 7 are also reported for the first time.

Original languageEnglish
Pages (from-to)1286-1293
Number of pages8
JournalPhytochemistry
Volume70
Issue number10
DOIs
Publication statusPublished - Jul 1 2009

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Keywords

  • Ellagitannin
  • Hirtellin A
  • Nilotinin D1
  • Nilotinin D2
  • Nilotinin D3
  • Nilotinin M1
  • Polyphenol
  • Tamaricaceae
  • Tamarix nilotica

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Plant Science
  • Horticulture

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