Synthesis and biological evaluation of new dipicolylamine zinc chelators as metallo-β-lactamase inhibitors
作者:Anthony Prandina、Sylvie Radix、Marc Le Borgne、Lars Petter Jordheim、Zineb Bousfiha、Christopher Fröhlich、Hanna-Kirsti S. Leiros、Ørjan Samuelsen、Espen Frøvold、Pål Rongved、Ove Alexander Høgmoen Åstrand
DOI:10.1016/j.tet.2019.02.004
日期:2019.3
Antibiotics are key drugs in modern healthcare, especially in hospitals, where multiresistant bacteria resides and is a potential threat to human health. In the present work, a new series of adjuvants working synergistically with the carbapenem meropenem, in which a selective zinc-chelating agent was covalently linked to the small bacterial peptide D-Ala-D-Ala, was synthesized and tested against VIM-2
抗生素是现代医疗保健中的关键药物,尤其是在医院中,那里存在多重抗药性细菌,并且可能对人类健康构成威胁。在目前的工作中,合成了一系列与碳青霉烯美罗培南协同工作的新佐剂,其中选择性锌螯合剂与小细菌肽D -Ala- D -Ala共价连接,并针对VIM-2和NDM-1金属-β-内酰胺酶(MBL)。在结构-活性关系研究中修改了接头的性质。带有乙基哌啶连接基的化合物1i对美罗培南的MIC从产生VIM-2和NDM-1的临床分离株的MIC分别从32 mg / L降低至2 mg / L和1-2 mg / L。IC 50值1i在5分钟和20分钟后,针对VIM-2的抗性分别为9.8和2.2μM。化合物1i还显示出对50至120μM之间的三种真核人肿瘤细胞系的内在毒性。