Inhibitors of Acyl-CoA:Cholesterol Acyltransferase (ACAT). 7. Development of a Series of Substituted N-Phenyl-N'-[(1-phenylcyclopentyl)methyl]ureas with Enhanced Hypocholesterolemic Activity
作者:Bharat K. Trivedi、Terri Stoeber Purchase、Ann Holmes、Corinne E. Augelli-Szafran、Arnold D. Essenburg、Katherine L. Hamelehle、Richard L. Stanfield、Richard F. Bousley、Brian R. Krause
DOI:10.1021/jm00037a016
日期:1994.5
series of N-phenyl-N'-aralkyl- and N-phenyl-N'-(1-phenylcycloalkyl)ureas as inhibitors of acyl-CoA: cholesterol acyltransferase (ACAT). From this series of analogs, compound 1 (PD 129337) was identified as a potent inhibitor of ACAT with an IC50 value of 17 nM. It was also shown to dose-dependently lower plasma cholesterol in cholesterol-fed rats. However, further investigation led to the suggestion
我们最近描述了我们对一系列N-苯基-N'-芳烷基和N-苯基-N'-(1-苯基环烷基)脲作为酰基CoA抑制剂的初步结构活性关系(SAR)研究:胆固醇酰基转移酶(一只猫)。从这一系列类似物中,化合物1(PD 129337)被鉴定为ACAT的有效抑制剂,IC50值为17 nM。还显示出它可以剂量依赖性地降低胆固醇喂养的大鼠的血浆胆固醇。但是,进一步的研究表明该化合物吸收不良,原因是当通过强饲法在水性赋形剂中给药时该化合物缺乏功效。为了克服这一缺陷,我们使用急性体内筛选继续了对这一系列新颖的ACAT抑制剂的SAR研究,其中将化合物在CMC / Tween悬浮水性介质中施用于大鼠。N'的修饰 通过结合适合形成盐和/或极性基团以降低亲脂性的官能团而形成的-苯基部分导致鉴定了几种使用该方案显示出优异功效的抑制剂。总的来说,与母体未取代化合物相比,邻,间或对位苯环上的取代导致抑制剂的体外效价仅略有下降。对