Macrocyclic BACE1 inhibitors with hydrophobic cross-linked structures: Optimization of ring size and ring structure
作者:Takuya Otani、Yasunao Hattori、Kenichi Akaji、Kazuya Kobayashi
DOI:10.1016/j.bmc.2021.116517
日期:2021.12
Based on the X-ray crystallography of recombinant BACE1 and a hydroxyethylamine-type peptidic inhibitor, we introduced a cross-linked structure between the P1 and P3 side chains of the inhibitor to enhance its inhibitory activity. The P1 and P3 fragments bearing terminal alkenes were synthesized, and a ring-closing metathesis of these alkenes was used to construct the cross-linked structure. Evaluation
基于重组 BACE1 和羟乙胺型肽抑制剂的 X 射线晶体学,我们在抑制剂的 P1 和 P3 侧链之间引入了交联结构,以增强其抑制活性。合成了带有末端烯烃的P1和P3片段,并使用这些烯烃的闭环复分解来构建交联结构。使用具有不同侧链长度的 P1 和 P3 片段评估环大小表明,13 元环是最佳的,尽管它们的活性与母体化合物相比有所降低。此外,发现最佳环结构是在 P3 β 位具有二甲基支链取代基的大环,其活性比未取代的大环高约 100 倍。此外,