Design, synthesis and biological evaluation of novel azaspiro analogs of linezolid as antibacterial and antitubercular agents
作者:Pradip K. Gadekar、Abhijit Roychowdhury、Prashant S. Kharkar、Vijay M. Khedkar、Manisha Arkile、Hardik Manek、Dhiman Sarkar、Rajiv Sharma、V. Vijayakumar、S. Sarveswari
DOI:10.1016/j.ejmech.2016.07.001
日期:2016.10
The design, synthesis and antimicrobial evaluation of a novel series of azaspiro analogues of linezolid (1) have been described. Linezolid comprises of a morpholine ring which is known for its metabolism-related liabilities. Therefore, the key modification made in the linezolid structure was the replacement of morpholine moiety with its bioisostere, 2-oxa-6-azaspiro[3.3]heptane. Furthermore, the replacement
已经描述了利奈唑胺(1)的一系列新型氮杂氮杂螺类似物的设计,合成和抗菌评估。利奈唑胺由吗啉环组成,该环以其与代谢有关的负债而闻名。因此,在利奈唑胺结构中进行的关键修饰是用其生物等排物2-oxa-6-azaspiro [3.3]庚烷取代吗啉部分。此外,用各种芳族或脂族官能团取代了1的N-乙酰基末端。针对一组革兰氏阳性和革兰氏阴性细菌和结核分枝杆菌评估标题化合物。随后的结构-活性关系(SAR)研究确定了几种具有混合抗菌和抗结核特性的化合物。化合物22(对于大肠埃希菌,IC50为0.72、0.51、0.88、0.49杯/毫升,铜绿假单胞菌,金黄色葡萄球菌,枯草芽孢杆菌分别显示出与1类似的抗菌谱。N-乙酰基衍生物18的抗结核谱与1相似。因此,本研究成功地证明了氮杂螺环亚结构在抗菌和抗结核药的药物化学中的用途。