Abstract
A new complex tannin, cowaniin (1) was isolated from the leaves and stems of Cowania mexicana (Rosaceae), and its structure was characterized as novel C-glucosidic tannin dimer linked through (+)-catechin on the basis of spectral and chemical evidence. The inhibitory effect on activation of the Epstein-Barr virus early antigen was assessed for cowaniin. Six known polyphenols and related compounds, including a nitrile glucoside, purshianin, were also characterized.
Original language | English |
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Pages (from-to) | 492-494 |
Number of pages | 3 |
Journal | Chemical and Pharmaceutical Bulletin |
Volume | 55 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2007 |
Keywords
- C-glucosidic ellagitannin dimer
- Complex tannin
- Cowania mexicana
- Cowaniin
- Epstein-Barr virus
- Rosaceae
ASJC Scopus subject areas
- Chemistry(all)
- Drug Discovery