Tripeptidic BACE1 inhibitors devised by in-silico conformational structure-based design
作者:Yoshio Hamada、Harichandra D. Tagad、Yoshinori Nishimura、Shoichi Ishiura、Yoshiaki Kiso
DOI:10.1016/j.bmcl.2011.11.102
日期:2012.1
Previously reported pentapeptidic BACE1 inhibitors, designed using a substrate-based approach, were used as lead compounds for the further design of non-peptidic BACE1 inhibitors. Although these peptidic and non-peptidic inhibitors, with a hydroxymethylcarbonyl isostere as a substrate transition-state mimic, exhibited potent BACE1 inhibitory activities, their molecular-sizes appeared a little too big
使用基于底物的方法设计的先前报道的五肽BACE1抑制剂被用作进一步设计非肽BACE1抑制剂的先导化合物。尽管这些肽类和非肽类抑制剂以羟甲基羰基等排物为底物过渡态模拟物表现出强大的BACE1抑制活性,但它们的分子大小似乎太大(分子量> 600道尔顿),因此无法开发出实用的抗阿尔茨海默氏病疾病药物。为了开发重量更轻的BACE1抑制剂,使用了一种基于结合到BACE1活性位点的虚拟抑制剂的构象的设计方法,设计了一系列三肽BACE1抑制剂,也称为“基于计算机构象结构的设计”。尽管这些三肽BACE1抑制剂含有一些天然氨基酸残基,