Specific Nonpeptide Inhibitors of Puromycin-Sensitive Aminopeptidase with a 2,4(1H,3H)-Quinazolinedione Skeleton
作者:Hiroki Kakuta、Aya Tanatani、Kazuo Nagasawa、Yuichi Hashimoto
DOI:10.1248/cpb.51.1273
日期:——
Potent, specific, chemically stable and non-peptide/small-molecular inhibitors of puromycin-sensitive aminopeptidase, such as 3-(2,6-diethylphenyl)-2,4(1H,3H)-quinazolinedione (PAQ-22, 5), were prepared by the structural development of a potent PSA inhibitor, 2-(2,6-diethylphenyl)-1,2,3,4-tetrahydroisoquinoline-1,3-dione (PIQ-22, 4). The design was carried out partly by applying electrostatic potential
嘌呤霉素敏感的
氨基肽酶的有效,特异性,
化学稳定性和非肽/小分子
抑制剂,例如3-(2,6-二
乙基苯基)-2,4(1H,3H)-
喹唑啉二酮(PAQ-22,5)通过有效的P
SA抑制剂2-(2,6-二
乙基苯基)-1,2,3,4-
四氢异喹啉-1,3-二酮(
PIQ-22,4)的结构开发来制备。通过应用从
PIQ-22(4)及其基于
沙利度胺(2)的衍
生物获得的静电势场信息来部分进行设计。该信息表明,
四氢异喹啉环中苄基亚甲基周围的正静电势场对于有效活性是必需的。Lineweaver-Burk图分析表明,PAQ-22(5)及其衍
生物以非竞争性方式抑制
嘌呤霉素敏感性
氨基肽酶(P
SA)。