Discovery of a Tricyclic β-Lactam as a Potent Antimicrobial Agent against Carbapenem-Resistant Enterobacterales, Including Strains with Reduced Membrane Permeability and Four-Amino Acid Insertion into Penicillin-Binding Protein 3: Structure–Activity-Relationships and <i>In Vitro</i> and <i>In Vivo</i> Activities
作者:Jun Sato、Hiroki Kusano、Toshiaki Aoki、Satoru Shibuya、Katsuki Yokoo、Kazuo Komano、Takuya Oguma、Shuhei Matsumoto、Rio Nakamura、Takafumi Sato、Kenji Yamawaki
DOI:10.1021/acsinfecdis.1c00549
日期:2022.3.11
clinical isolates with resistance mechanisms other than β-lactamase production. These mechanisms were the reduction of outer membrane permeability with the production of β-lactamases and the insertion of four amino acids into penicillin-binding protein 3. Here, we report the discovery of a potent compound that overcomes these resistance mechanisms by the conversion of the alkoxyimino moiety of the aminothiazole
目前全球出现的耐碳青霉烯肠杆菌 (CRE) 对临床和公共卫生构成了日益严重的威胁。获得性碳青霉烯酶是碳青霉烯类耐药性的最重要决定因素。在先前报道的三环 β-内酰胺骨架的开发过程中,该骨架在没有 β-内酰胺酶抑制剂的情况下对几种有问题的产生 β-内酰胺酶的 CRE 表现出有效的抗菌活性,我们发现这些活性对具有除 β-内酰胺酶以外的耐药机制的临床分离株降低。内酰胺酶的产生。这些机制是通过产生 β-内酰胺酶和将四个氨基酸插入青霉素结合蛋白 3 来降低外膜通透性。在这里,