Provided are an iminopyridine derivative having a selective α1D adrenergic receptor antagonistic action and useful as an agent for the prophylaxis or treatment of a lower urinary tract disease and the like, and a screening method for a compound having an α1D adrenergic receptor antagonistic action. An α1D adrenergic receptor antagonist containing a compound represented by the formula:
wherein each symbol is as defined in the specification, or a salt thereof, and a method of screening for an agent having an α1D adrenergic receptor antagonistic action for the prophylaxis or treatment of a lower urinary tract disease, which includes measuring the bladder smooth muscle tension of rats with bladder outlet obstruction.
Provided are an iminopyridine derivative having a selective α
1D
adrenergic receptor antagonistic action and useful as an agent for the prophylaxis or treatment of a lower urinary tract disease and the like, and a screening method for a compound having an α
1D
adrenergic receptor antagonistic action. An α
1D
adrenergic receptor antagonist containing a compound represented by the formula:
wherein each symbol is as defined in the specification, or a salt thereof, and a method of screening for an agent having an α
1D
adrenergic receptor antagonistic action for the prophylaxis or treatment of a lower urinary tract disease, which includes measuring the bladder smooth muscle tension of rats with bladder outlet obstruction.
A screening method for an agent having an α1D adrenergic receptor antagonistic action for the prophylaxis or treatment of a lower urinary tract disease, which comprises measuring the tension of the bladder smooth muscle of a bladder outlet obstruction rat.
Discovery of 5-Chloro-1-(5-chloro-2-(methylsulfonyl)benzyl)-2-imino-1,2-dihydropyridine-3-carboxamide (TAK-259) as a Novel, Selective, and Orally Active α<sub>1D</sub> Adrenoceptor Antagonist with Antiurinary Frequency Effects: Reducing Human Ether-a-go-go-Related Gene (hERG) Liabilities
structural class of iminopyridine derivative 1 was identified as a potent and selective human α1D adrenoceptor (α1D adrenergic receptor; α1D-AR) antagonist against α1A- and α1B-AR through screening of an in-house compound library. From initial structure–activity relationship studies, we found lead compound 9m with hERG K+ channel liability. To develop analogues with reduced hERG K+ channel inhibition, a combination
衍生物的新型结构类亚氨基吡啶的1被确定为一个有效的和选择性的人α 1D肾上腺素受体(α 1D肾上腺素能受体;α 1D -AR)拮抗剂对α 1A -和α 1B -AR通过一个内部化合物文库的筛选。通过初步的结构-活性关系研究,我们发现铅化合物9m具有hERG K +通道依赖性。为了开发具有降低的hERG K +通道抑制作用的类似物,采用了定点诱变和对接研究的组合。进一步的优化导致发现了(R)-9s和9u在膀胱出口梗阻的大鼠中通过膀胱剥离试验显示出拮抗活性,并且在大鼠中改善了膀胱炎引起的尿频。最终,选择9u作为临床候选药物。这是首次研究表明亚氨基吡啶衍生物的效用作为选择性α 1D -AR拮抗剂和评估其体内效果。