Post Groebke–Blackburn multicomponent protocol: Synthesis of new polyfunctional imidazo[1,2-a]pyridine and imidazo[1,2-a]pyrimidine derivatives as potential antimicrobial agents
作者:Taleb H. Al-Tel、Raed A. Al-Qawasmeh
DOI:10.1016/j.ejmech.2010.09.049
日期:2010.12
New antimicrobial agents [imidazo[1,2-a]pyridine and imidazo[1,2-a]pyrimidine] have been synthesized. Their antimicrobial activities were conducted against various Gram-positive and Gram-negative bacteria including Staphylococcus aureus. Compounds 5d, 7a, 10a, 11a and 12a proved to efficiently inhibit the growth of all the Gram-positive and Gram-negative strains investigated. Results of this study
合成了新的抗菌剂[咪唑并[1,2-a]吡啶和咪唑并[1,2-a]嘧啶]。他们对各种革兰氏阳性和革兰氏阴性细菌(包括金黄色葡萄球菌)进行了抗菌活性。化合物5d,7a,10a,11a和12a被证明可有效抑制所研究的所有革兰氏阳性和革兰氏阴性菌株的生长。这项研究的结果表明,武装的苯基上的取代基的性质决定了稠合的咪唑并吡啶和/或咪唑并嘧啶衍生物的活性程度。初步的结构活性观察表明,西格玛值为正,双值均为正(例如,与其他生物等排体(例如5b)相比,5d,6c,12a,12d)的活性明显更高。此外,增加取代图案(例如5b,6b和6d)的摩尔折射率显着降低了抗菌活性。