4-Substituted 2-amino-3,4-dihydroquinazolines with a 3-hairpin turn side chain as novel inhibitors of BACE-1
作者:Ajit Dhananjay Jagtap、Nagendra B. Kondekar、Pei-Yun Hung、Chen-En Hsieh、Chia-Ron Yang、Grace Shiahuy Chen、Ji-Wang Chern
DOI:10.1016/j.bioorg.2019.103135
日期:2020.1
compounds exhibited potent BACE-1 inhibitory activity: 4-methyl-substituted (22a, BACE-1 CFA IC50 = 0.38 μM; BACE-1 WCA IC50 = 0.14 μM) and 4-cyclohexylmethyl-substituted (22b, BACE-1 CFA IC50 = 0.49 μM; BACE-1 WCA IC50 = 0.14 μM) 2-amino-3,4-dihydroquinazoline, each bearing a side chain of N-cyclohexyl-N-((1-methyl-1H-pyrazol-4-yl)methyl amide. The results suggest that the structural modifications maintain
在这里,我们报告鉴定,设计和合成一系列具有发夹转向侧链作为BACE-1的新型抑制剂的4-取代的2-氨基-3,4-二氢喹唑啉。通过修饰酰胺基并重新定位铅化合物2的发夹转角侧链上的α-疏水取代基至3,4-二氢喹唑啉骨架上的C4位,以促进与S1,S2和S3的相互作用,合理地设计了二氢喹唑啉衍生物。 BACE-1的S1'子站点。在这些衍生物中,两种化合物显示出有效的BACE-1抑制活性:4-甲基取代的(22a,BACE-1 CFA IC50 = 0.38μM; BACE-1 WCA的IC50 = 0.14μM)和4-环己基甲基取代的(22b,BACE -1 CFA IC50 = 0.49μM; BACE-1 WCA IC50 = 0.14μM)2-氨基-3,4-二氢喹唑啉,