Structure–activity relationship study of hydroxyethylamine isostere and P1′ site structure of peptide mimetic BACE1 inhibitors
作者:Kazuya Kobayashi、Takuya Otani、Saki Ijiri、Yuki Kawasaki、Hiroki Matsubara、Takahiro Miyagi、Taishi Kitajima、Risa Iseki、Katsuyasu Ishizawa、Naoka Shindo、Kouta Okawa、Kouta Ueda、Syun Ando、Momoka Kawakita、Yasunao Hattori、Kenichi Akaji
DOI:10.1016/j.bmc.2021.116459
日期:2021.11
An aromatic substituent has been introduced into a known hydroxyethylamine (HEA)-type BACE1 inhibitor containing the superior substrate sequence to enhance inhibitory activity. The HEA-type isosteres bearing different hydroxyl group and methyl group configurations were prepared through a branched synthesis approach using intra- and inter-molecular epoxide opening reactions. The effect of their configuration
已将芳香族取代基引入已知的羟乙胺 (HEA) 型 BACE1 抑制剂中,该抑制剂含有优越的底物序列以增强抑制活性。具有不同羟基和甲基构型的 HEA 型等排体是通过使用分子内和分子间环氧化物开环反应的支链合成方法制备的。评估了它们的构型效果,表明R构型提高了抑制活性,而在等排体上引入甲基降低了活性。基于具有R构型的非取代等排体,21 种衍生物在P处含有各种取代基1'位点被合成。我们对衍生物的评估表明,P 1' 位点的结构对活性有明显的影响,并且鉴定出对重组 BACE1 (rBACE1) 具有亚微摩尔活性的高效抑制剂40g 。40g与rBACE1的对接模拟表明, P 1'苯环对位的羧甲基与S1'口袋中的Lys285相互作用。