1-(Thienylalkyl)imidazole-2(3H)-thiones as potent competitive inhibitors of dopamine .beta.-hydroxylase
作者:James R. McCarthy、Donald P. Matthews、Robert J. Broersma、Roger D. McDermott、Philip R. Kastner、Jean Marie Hornsperger、David A. Demeter、Herschel J. R. Weintraub、Jeffrey P. Whitten
DOI:10.1021/jm00169a006
日期:1990.7
1-(2-Thienylalkyl)imidazole-2(3H)-thiones (5a-k) are competitive inhibitors of dopamine beta-hydroxylase (DBH) and demonstrate the utility of thiophene in the design of potent competitive inhibitors of this enzyme. The structure-activity relationships for these compounds are discussed and compared with those of 1-phenylalkyl-imidazole-2(3H)-thiones (1). With the aid of molecular modeling, an idealized
1-(2-噻吩基烷基)咪唑-2(3H)-硫酮(5a-k)是多巴胺β-羟化酶(DBH)的竞争性抑制剂,证明噻吩在该酶有效竞争性抑制剂的设计中具有实用性。讨论了这些化合物的结构活性关系,并将其与1-苯基烷基-咪唑-2(3H)-硫酮(1)进行了比较。借助于分子建模,提出了理想的活性部位构象异构体,并提出了对苯基(1)和噻吩基(5)DBH抑制剂之间活性差异的解释。活性上的差异与我们的建议一致,即噻吩可能并不总是苯基的生物等排体。选择最感兴趣的抑制剂1- [2-(2-噻吩基)乙基]咪唑-2(3H)-硫酮(5g)在自发性高血压大鼠中进行研究。