(−log IC50 = 8.46). The latter analogue was also found to be the most active in the rat uterotonic test (pA2 = 7.83). Importantly, the binding affinity was higher to that of losartan (−log IC50 = 8.25) indicating the importance of carboxy group at the C-2 position. Experimental findings are in good agreement with docking studies, which were undertaken in order to investigate ligand/AT1 receptor interactions
在当前的研究中,已经报道了方便有效的合成,计算机对接研究以及作为有效的
血管紧张素II(ANG II)受体1型(AT1)阻滞剂(ARB)的N-取代的5-丁基
咪唑衍
生物的体外
生物学评估。我们的努力致力于开发一种有效的合成路线,该路线允许在
咪唑环上轻松引入取代基。特别地,一系列基于
咪唑化合物轴承在所述
联苯部分Ñ - 1点的位置,在卤原子ç极性取代基,如
羟甲基-4和,ALDO或羧基在Ç设计并合成了-2位。评估了这些化合物与人AT1受体的结合以及体外离体大鼠子宫对ANG II的拮抗作用。其中,与其他类似物相比,5-丁基-1-[[[2'-(2 H-
四唑-5-基)
联苯-4-基]
甲基]
咪唑-2-
羧酸(30)表现出更高的结合亲和力测试(-log IC 50 = 8.46)。还发现后者在大鼠子宫收缩试验中最活跃(pA 2 = 7.83)。重要的是,结合亲和力高于
氯沙坦(-log IC 50 = 8.2