申请人:UNIVERSITY OF NOTRE DAME DU LAC
公开号:US20130281424A1
公开(公告)日:2013-10-24
An artificial tris-catecolate siderophore with a tripodal backbone and its conjugates with ampicillin and amoxicillin were synthesized. Both conjugates exhibited significantly enhanced in vitro antibacterial activities against Gram-negative species compared to the parent drugs, especially against
P. aeruginosa
. The conjugates appear to be assimilated by an induced bacterial iron transport process as their activities were inversely related to iron concentration. The easily synthesized tris-catecolate siderophores can be used with a variety of drugs as conjugates to target antibiotic-resistant Gram-negative bacteria.
合成了一种具有三脚架骨架的人工三儿茶酚鞘铁素及其与氨苄青霉素和阿莫西林的结合物。与母药相比,这两种结合物在体外抗菌活性明显增强,特别是对铜绿假单胞菌的抗菌活性。这些结合物似乎通过诱导的细菌铁运输过程被同化,因为它们的活性与铁浓度呈负相关。易于合成的三儿茶酚鞘铁素可以与各种药物结合,以靶向抗生素耐药的革兰氏阴性细菌。