Bifunctional antibiotics for targeting rRNA and resistance-causing enzymes
申请人:Baasov Timor
公开号:US20050004052A1
公开(公告)日:2005-01-06
A novel group of aminoglycosides which share some structural features of currently available aminoglycosides with regard to the backbone, while also having significant structural differences. The similarity enables these aminoglycosides to be highly potent and effective antibiotics, while the significant differences enable these aminoglycosides to reduce or even block antibiotic resistance.
We developed an efficient method to achieve the regioselective acyl migration of benzoyl ester. In all the cases, the reactions required only the commercially available organic acid catalyst TsOH·H2O. This method enables the benzoyl group to migrate from secondary groups to primary hydroxyl groups, or from equatorial secondary hydroxyl groups to axial hydroxyl groups. The 1,2 or 1,3 acyl migration
Selective Oxidation of Glycosyl Sulfides to Sulfoxides Using Magnesium Monoperoxyphthalate and Microwave Irradiation
作者:Ming-Yi Chen、Laxmikant Narhari Patkar、Chun-Cheng Lin
DOI:10.1021/jo035698o
日期:2004.4.1
A protocol that uses moist magnesium monoperoxyphthalate (MMPP) as an oxidant under microwave irradiation rapidly yields a variety of glycosyl sulfoxides from corresponding sulfides in high yields with high selectivity.
Dual Effect of Synthetic Aminoglycosides: Antibacterial Activity againstBacillus anthracis and Inhibition of Anthrax Lethal Factor
作者:Micha Fridman、Valery Belakhov、Lac V. Lee、Fu-Sen Liang、Chi-Huey Wong、Timor Baasov