Novel thiomorpholine tethered isatin hydrazones as potential inhibitors of resistant Mycobacterium tuberculosis
作者:Sivanandhan Karunanidhi、Balakumar Chandrasekaran、Rajshekhar Karpoormath、Harun M. Patel、Francis Kayamba、Srinivas Reddy Merugu、Vishal Kumar、Sanjeev Dhawan、Babita Kushwaha、Mavela Cleopus Mahlalela
DOI:10.1016/j.bioorg.2021.105133
日期:2021.10
resistant-tuberculosis (MDR-TB) are urgently needed at this juncture to save the life of TB-infected patients. In this work, we have synthesized and characterized novel isatin hydrazones 4(a-o) and their thiomorpholine tethered analogues 5(a-o). All the synthesized compounds were initially screened for their anti-mycobacterial activity against the H37Rv strain of Mycobacterium tuberculosis (MTB) under level-I
目前迫切需要针对耐多药结核病 (MDR-TB) 的新型化疗药物,以挽救 TB 感染患者的生命。在这项工作中,我们合成并表征了新型靛红腙 4(ao) 及其硫代吗啉系链类似物 5(ao)。所有合成的化合物最初都在 I 级测试下筛选了它们对 H 37 Rv结核分枝杆菌(MTB)菌株的抗分枝杆菌活性。值得注意的是,发现五种化合物 4f、4h、4n、5f 和 5m(IC 50 = 1.9 µM 至 9.8 µM)活性最高,其中 4f(IC 50 = 1.9 µM)表明对 H 37 的抑制最高房车 这些化合物在针对异烟肼耐药菌株(INH-R1 和 INH-R2)、利福平耐药菌株(RIF-R1 和 RIF-R2)和氟喹诺酮耐药菌株等五种耐药菌株的 II 级测试中进行了进一步评估MTB 菌株 (FQ-R1)。有趣的是,4f 和 5f 成为最有效的化合物,其对 RIF-R1 MTB 菌株的IC 50为 3