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Three new isoflavanones from Erythrina costaricensis.
- Source :
- Natural Product Research; Aug2009, Vol. 23 Issue 12, p1089-1094, 6p, 1 Diagram, 2 Charts
- Publication Year :
- 2009
-
Abstract
- Three new isoflavanones, 5,7,3'-trihydroxy-4'-methoxy-6,5'-di(γ, γ-dimethylallyl)-isoflavanone (1), 5,3'-dihydroxy-4'-methoxy-5'-γ,γ-dimethylallyl-2'',2''-dimethylpyrano[5,6 : 6,7]isoflavanone (2) and 5,3'-dihydroxy-2'',2''-dimethylpyrano[5,6 : 6,7]-2''',2'''-dimethylpyrano[5,6 : 5,4]isoflavanone (3), along with two known isoflavonoids, cristacarpin and euchrenone b10, were isolated from the stems of Erythrina costaricensis. Their structures were established on the basis of spectroscopic evidence. Compound 3 is a rare isoflavanone possessing two 2,2-dimethylpyran moieties. Among the new isoflavanones, compound 1 showed potent antibacterial activity against methicillin-resistant Staphylococcus aureus. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14786419
- Volume :
- 23
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Natural Product Research
- Publication Type :
- Academic Journal
- Accession number :
- 43579028
- Full Text :
- https://doi.org/10.1080/14786410802292286