Novel 1-(4-substituted benzylidene)-4-(1-(substituted methyl)-2,3-dioxoindolin-5-yl)semicarbazide derivatives for use against Mycobacterium tuberculosis H37Rv (ATCC 27294) and MDR-TB strain
作者:Sundararajan Raja、Chinnasamy Rajaram Prakash
DOI:10.1007/s12272-013-0062-1
日期:2013.4
A series of eighteen new 1-(4-substituted benzylidene)-4-(1-(substituted methyl)-2,3-dioxoindolin-5-yl)semicarbazide derivatives were designed, synthesized and characterized by spectral and elemental analyses. The derivatives were screened in vitro for antimicrobial activity against Mycobacterium tuberculosis H37Rv (ATCC 27294) and MDR-TB strains. The activity was expressed as the minimum inhibitory concentration in μg/mL. Among the tested compounds 7j, 7m, 7o and 7q possesses equipotent activity as standard drug Isoniazid against MTB while 7m and 7q exhibited higher activity against MDR-TB strain when compared with both the reference drugs isoniazid and rifampicin. Basic structure activity relationships are presented.
本研究设计、合成并通过光谱和元素分析表征了 18 种新的 1-(4-取代亚苄基)-4-(1-(取代甲基)-2,3-二氧代吲哚啉-5-基)半咔嗪衍生物。体外筛选了这些衍生物对结核分枝杆菌 H37Rv(ATCC 27294)和 MDR-TB 菌株的抗菌活性。活性以最小抑菌浓度表示,单位为 μg/mL。与标准药物异烟肼和利福平相比,7j、7m、7o 和 7q 对 MTB 的活性与标准药物异烟肼相当,而 7m 和 7q 对 MDR-TB 菌株的活性更高。介绍了基本的结构活性关系。