Design and discovery of 2-(4-(1H-tetrazol-5-yl)-1H-pyrazol-1-yl)-4-(4-phenyl)thiazole derivatives as cardiotonic agents via inhibition of PDE3
作者:Li-Min Duan、Hong-Ying Yu、Yan-Long Li、Chun-Juan Jia
DOI:10.1016/j.bmc.2015.08.002
日期:2015.9
A series of novel 2-(4-(1H-tetrazol-5-yl)-1H-pyrazol-1-yl)-4-(4-phenyl)thiazole derivatives, 6(a–o) were designed, synthesized and evaluated for inhibitory activity against human PDE3A and PDE3B. In PDE3 assay, entire set of targeted analogs showed considerable inhibition of PDE3A (IC50 = 0.24 ± 0.06–16.42 ± 0.14 μM) over PDE3B (IC50 = 2.34 ± 0.13–28.02 ± 0.03 μM). Among the synthesized derivatives
设计,合成了一系列新颖的2-(4-(1 H-四唑-5-基)-1 H-吡唑-1-基)-4-(4-苯基)噻唑衍生物,6(a – o)并评估其对人PDE3A和PDE3B的抑制活性。在PDE3分析中,整套目标类似物显示出对PDE3A的抑制作用(IC 50 = 0.24±0.06–16.42±0.14μM)优于PDE3B(IC 50 = 2.34±0.13–28.02±0.03μM)。在合成衍生物中,化合物6d对PDE3A的抑制作用最强,其IC 50 = 0.24±0.06μM,而PDE3B(IC 50 = 2.34±0.13μM)。与Vesnarinone相比,该化合物还应进行心脏活动(收缩和变时性作用)的评估。结果表明,在100μM时,它选择性地调节收缩力(63%±5),而不是频率速率(23%±2)。在PDE3蛋白模型的活性位点也进行了上述化合物的对接研究,以证明所设计的抑制剂的作用机理。