dc.contributor.author | Wanjala, Cornelius C. | |
dc.contributor.author | Bojase, Gomotsang | |
dc.contributor.author | Majinda, Runner R. T. | |
dc.date.accessioned | 2015-03-31T08:50:00Z | |
dc.date.available | 2015-03-31T08:50:00Z | |
dc.date.issued | 2001 | |
dc.identifier.citation | Bu ll. Chem. Soc. Eth iop. 2001, 15(2), 131-136 | en_US |
dc.identifier.issn | 1011-3924 | |
dc.identifier.uri | http://www.ajol.info/index.php/bcse/article/view/20958/3902 | |
dc.identifier.uri | http://repository.seku.ac.ke/handle/123456789/1118 | |
dc.description.abstract | The structures of two new isoflavonoids from the combined ethyl acetate/methanolic extracts of the stem bark of Bolusanthus speciosus have been established as 4,7,2' -trihydroxy-4' -methoxyisoflavanol (1) and 5,7,3' ,4' -tetrahydroxy-5' -(2-epoxy-3-methylbutyl)isoflavanone (2). Five other known isoflavonoids, 5,7,3' -trihydroxy-4' -methoxy-5' -γγ; -dimethylallylisoflavanone, 5,7,2' -trihydroxy-4' -methoxy-6,5' -di)(γγ -dimethylallyl)isoflavanone, 5,7,2' ,4'-tetrahydroxy-8,5'2; -di(γγ -dimethylallyl)flavanone, 5,7,2' ,4' -tetrahydroxy-8,3' -di(γγ -dimethylallyl)-isoflavanone, and derrone were also isolated. Compound 2 showed moderate activity against gram positive bacteria and weak activity against gram negative bacteria, while compound 1 was weakly active against both organisms in a TLC bioautography assay. | en_US |
dc.language.iso | en | en_US |
dc.subject | Bolusanthus speciosus | en_US |
dc.subject | 4,7,2¢-Trihydroxy-4¢-methoxyisoflavanol | en_US |
dc.subject | 5,7,3¢,4¢- Tetrahydroxy-5¢-(2-epoxy-3-methylbutyl)isoflavanone | en_US |
dc.subject | Antibacterial activity | en_US |
dc.title | Two new isoflavanoids from Bolusanthus Speciosus | en_US |
dc.type | Article | en_US |