Novel Mercapto Propionamide Derivatives with Potent New Delhi Metallo-β-Lactamase-1 Inhibitory Activity and Low Toxicity

作者：Zhi Qiang Meng, Mei‐Lin Tang, Liting Yu, Yongxi Liang, Jilai Han, ChenChen Zhang, Fupin Hu, Jianming Yu, Xun Sun · 发表于：ACS Infectious Diseases · 年份：2019 · DOI：10.1021/acsinfecdis.8b00366 · 被引用次数：28 · 研究领域：Antibiotic Resistance in Bacteria、Antibiotics Pharmacokinetics and Efficacy、Pharmaceutical and Antibiotic Environmental Impacts

The emergence and worldwide prevalence of New Delhi metallo-β-lactamase 1 (NDM-1) expressing Gram-negative bacteria with resistance against most β-lactam antibiotics pose a serious threat to human health. However, no NDM-1 inhibitors are clinically approved at present. Herein, based on the lead compound captopril, a series of compounds were designed, synthesized, and evaluated for NDM-1 inhibitory activities. All designed compounds showed single digit micromolar or submicromolar NDM-1 inhibitory activities, which were much more potent than that of captopril. Among them, compounds 14a and 14m exhibited excellent NDM-1 inhibitory activities, with IC 50 values of 0.10 and 0.12 μM, respectively. Further studies demonstrated that compound 14m displayed low cytotoxicity, good water solubility, high metabolic stability, and low acute toxicity in mice. Importantly, compound 14m exhibited potent synergistic antimicrobial activities with Meropenem (MEM) for the treatment of clinically isolated NDM-1-expressing strains.