Synthesis and Structure–Activity Relationship Study of Antimicrobial Auranofin against ESKAPE Pathogens
作者:Bin Wu、Xiaojian Yang、Mingdi Yan
DOI:10.1021/acs.jmedchem.9b00550
日期:2019.9.12
including multidrug resistant strains. It is, however, inactive toward Gram-negative bacteria, for which we are in dire need of new therapies. In this work, 40 auranofin analogues were synthesized by varying the structures of the thiol and phosphine ligands, and their activities were tested against ESKAPE pathogens. The study identified compounds that exhibited bacterial inhibition (MIC) and killing
FDA批准的关节炎药物金诺芬(Auranofin)最近已被重新用作潜在的抗菌药物。它对许多革兰氏阳性细菌(包括耐多药菌株)表现良好。但是,它对革兰氏阴性细菌没有活性,因此我们急需新疗法。在这项工作中,通过改变硫醇和膦配体的结构合成了40种金诺芬类似物,并测试了它们对ESKAPE病原体的活性。该研究鉴定出的化合物具有比金诺芬高65倍的细菌抑制(MIC)和杀灭(MBC)活性,从而使它们对革兰氏阴性病原体有效。硫醇和膦结构都影响类似物的活性。三甲基膦和三乙基膦配体分别对革兰氏阴性菌和革兰氏阳性菌具有最高的活性。我们的SAR研究表明,巯基配体也非常重要,其结构可以调节AuI复合物对革兰氏阴性细菌和革兰氏阳性细菌的活性。而且,这些类似物具有的哺乳动物细胞毒性与金诺芬相似或更低。