作者:Zhang, Laiying、Yang, Jiaxing、Xu, Xin、Zhang, Jiangnan、Qiu, Zhiqiang、Ju, Yuan、Luo, Baozhu、Liu, Yan、Gou, Xupeng、Sui, Jing、Chen, Baoyi、Wang, Yanmei、Tao, Tao、He, Lei、Yang, Tao、Luo, Youfu
DOI:10.1021/acs.jmedchem.4c00320
日期:——
Staphylococcus aureus enoyl-acyl carrier protein reductase (SaFabI) emerges as a compelling target for combating methicillin-resistant S. aureus (MRSA) infections. Herein, compound 1, featuring a 4-(1H-benzo[d]imidazol-2-yl)pyrrolidin-2-one scaffold, was identified as a potent SaFabI inhibitor (IC50 = 976.8 nM) from an in-house library. Subsequent optimization yielded compound n31, with improved inhibitory efficacy
作为脂肪酸生物合成中的限速酶,金黄色葡萄球菌烯酰酰基载体蛋白还原酶 ( Sa FabI) 成为对抗耐甲氧西林金黄色葡萄球菌(MRSA) 感染的引人注目的靶标。在此,以 4-(1 H-苯并[ d ]咪唑-2-基)吡咯烷-2-酮支架为特征的化合物1被内部鉴定为有效的Sa FabI 抑制剂 (IC 50 = 976.8 nM)图书馆。随后的优化产生了化合物n31 ,其对酶活性的抑制功效(IC 50 = 174.2 nM)和对金黄色葡萄球菌的选择性效力(MIC = 1–2 μg/mL)得到改善。从机制上讲, n31在细胞环境中直接抑制Sa FabI。此外, n31表现出良好的安全性和药代动力学特征,并且可以剂量依赖性地治疗 MRSA 引起的皮肤感染,其效果优于已批准的药物利奈唑胺。 n31的手性分离产生( S )-n31 ,具有优异的活性(IC 50 = 94.0 nM,MIC = 0.25–1