Antimycobacterial Activity of Substituted Isosteres of Pyridine- and Pyrazinecarboxylic Acids. 2.
作者:Mikail H. Gezginci、Arnold R. Martin、Scott G. Franzblau
DOI:10.1021/jm000350w
日期:2001.5.1
included in this study due to their interesting activity. Pivaloyloxymethyl derivatives of the isosteres were also prepared in order to increase their lipophilicity and therefore improve their cellular permeability. The derivatized isosteres were expected to be biotransformed by esterases to the active species after penetration of the mycobacterial cell wall. Biological properties of the compounds were compared
合成被1,2,4-恶二唑-5-酮,1,2,4-恶二唑-5-硫酮和1,3,4-恶二唑啉-2-酮取代的吡啶和吡嗪,并测试其对结核分枝杆菌的抵抗力。文献中记录了前两个环系统起羧酸等位异构体的作用。后一系列作为1,2,4-噻二唑-3-酮的可能合成中间体被合成,由于其有趣的活性而被纳入本研究。还制备了等排烷的新戊酰氧基甲基衍生物,以增加其亲脂性,并因此改善其细胞渗透性。在分枝杆菌细胞壁穿透后,衍生的等排体有望被酯酶生物转化为活性物种。将化合物的生物学特性与吡嗪酸和烟酸的未修饰极性等排体进行了比较。大多数化合物表现出的活性为吡嗪酰胺效力的0.5至16倍。