A series of N1-nicotinoyl-3- (4'-hydroxy-3'-methyl phenyl)-5-(substituted phenyl)-2-pyrazolines were synthesized by the reaction between isoniazid (INH) and chalcones and were tested for their antimycobacterial activity in vitro against Mycobacterium tuberculosis H37Rv (MTB) and INH-resistant M. tuberculosis (INHR-MTB) using the agar dilution method. Among the synthesized compounds, compound (i) N
通过异烟
肼(INH)与
查耳酮的反应合成了一系列N1-烟酰基-3-(4'-羟基-3'-甲基苯基)-5-(取代的苯基)-2-
吡唑啉,并测试了它们的抗分枝杆菌作用
琼脂稀释法在体外对结核分枝杆菌H37Rv(
MTB)和耐INH结核分枝杆菌(INHR-
MTB)具有体外活性。在合成的化合物中,发现化合物(i)N1-烟酰基-3-(4'-羟基-3'-甲基苯基)-5-(1''-
氯苯基)-2-
吡唑啉是最有效的抗
MTB和INHR-
MTB,最低抑菌浓度为0.26微米。当与INH化合物比较时,我发现其对
MTB和INHR-
MTB的活性分别高2.8倍和43.7倍。