Inhibitors of acyl-CoA:cholesterol acyltransferase (ACAT). 2. Modification of fatty acid anilide ACAT inhibitors: bioisosteric replacement of the amide bond
作者:W. Howard Roark、Bruce D. Roth、Ann Holmes、Bharat K. Trivedi、Karen A. Kieft、Arnold D. Essenburg、Brian R. Krause、Richard L. Stanfield
DOI:10.1021/jm00063a016
日期:1993.5
acyl-coenzyme A:cholesterol acyltransferase (ACAT) in vitro and cholesterol lowering in vivo, systematic study of bioisosteric replacements for the amide bond in our previously identified series of fatty acid anilide ACAT inhibitors was undertaken. Only replacement of amide bonds with isosterases having both hydrogen bond donor and acceptor functionalities yielded compounds retaining ACAT inhibitory activity
为了进一步定义在体外有效抑制酰基辅酶A:胆固醇酰基转移酶(ACAT)和体内降低胆固醇所必需的结构特征,在我们先前确定的脂肪酸苯胺类ACAT系列中,对酰胺键的生物等位取代进行了系统的研究进行抑制剂。仅用具有氢键供体和受体功能的异构酶替代酰胺键,得到保留ACAT抑制活性的化合物。用尿素生物甾体取代酰胺键产生的化合物在体外是有效的ACAT抑制剂,在体内是有效的降胆固醇药。检查N-苯基-N'-烷基脲的苯环和烷基部分的结构活性关系发现,在苯环中6-二异丙基取代是最佳的。当2,6-二异丙基部分保持恒定时,在体外和体内的效力通过长度为6至18个碳的直链和支链烷基保持。