Synthesis and antihypertensive activity of pyrimidin-4(3H)-one derivatives as losartan analogue for new angiotensin II receptor type 1 (AT1) antagonists
作者:Tae Woo Kim、Byoung Wook Yoo、Joon Kwang Lee、Ji Han Kim、Kyung-Tae Lee、Yong Ha Chi、Jae Yeol Lee
DOI:10.1016/j.bmcl.2011.12.116
日期:2012.2
The discovery, in vitro and in vivo studies of the highly potent AT1 antagonist 12a (BR-A-657, Fimasartan) antagonists are presented. A series of pyrimidin-4(3H)-one derivatives as losartan analogue were synthesized and evaluated for a novel class of AT1 receptor antagonists. Among them, 12a containing thioamido moiety displayed both high in vitro functional antagonism and binding affinity [IC50 = 0
提出了高效AT 1拮抗剂12a(BR-A-657,Fimasartan)拮抗剂的发现,体内和体外研究。合成了一系列作为氯沙坦类似物的嘧啶4-4(3 H)-one衍生物,并对其进行了一类新型的AT 1受体拮抗剂的评价。其中,含有硫酰胺基部分的12a表现出较高的体外功能拮抗作用和结合亲和力[分别为IC 50 = 0.42和0.13 nM],并在具有ED 50的成髓大鼠中强烈抑制了AngII诱导的升压反应。0.018 mg / kg。此外,在速尿治疗的大鼠和清醒的肾性高血压大鼠模型中进行的体内评估以及药代动力学研究表明,12a是一种高效且口服活性的AT 1选择性拮抗剂,具有比氯沙坦更强的体内效力。