Novel 5-substituted derivatives of 2’-deoxy-6-azauridine with antibacterial activity
作者:Sergey D. Negrya、Olga V. Efremenkova、Pavel N. Solyev、Vladimir O. Chekhov、Maxim A. Ivanov、Irina G. Sumarukova、Inna L. Karpenko、Sergey N. Kochetkov、Liudmila A. Alexandrova
DOI:10.1038/s41429-019-0158-z
日期:2019.7
method for preparation of α- and β-anomers of 5-modified 6-aza- and 2-thio-6-aza-2'-deoxyuridine derivatives in high yields. 2-Thio derivatives demonstrated moderate activity against Mycobacterium smegmatis (MIC = 0.2-0.8 mM), Staphylococcus aureus (MIC = 0.03-0.9 mM) and some other Gram-positive bacteria. 2'-Deoxy-2-thio-5-phenyl-6-azauridine (2b) effectively suppressed the growth of Gram-negative bacteria
新的耐药菌菌株的出现使得必须开发新的抗菌剂。新型抗菌剂之一是核苷类似物。我们已经开发出一种快速简单的一锅法,可高产率地制备5-修饰的6-aza-和2-thio-6-aza-2'-脱氧尿苷衍生物的α-和β-端基异构体。2-硫代衍生物对耻垢分枝杆菌(MIC = 0.2-0.8 mM),金黄色葡萄球菌(MIC = 0.03-0.9 mM)和其他一些革兰氏阳性细菌具有中等活性。2'-Deoxy-2-thio-5-phenyl-6-azauridine(2b)有效地抑制了革兰氏阴性细菌铜绿假单胞菌ATCC 27853(MIC = 0.03 mM)的生长,这种细菌由于高致病性而难以治疗对抗生素有抗药性。化合物2a,b和3a的5'-单磷酸盐,将b对接至结核分枝杆菌黄素依赖性胸苷酸合酶(ThyX)酶的结合位点。分子模型证明了5-修饰的2-硫代-6-氮杂-2'-脱氧尿苷5'-单磷酸结合在酶的活性位点内的可能性,从而抑制了细菌的生长。