Download MendeleyDesign, synthesis, and X-ray structural studies of BACE-1 inhibitors containing substituted 2-oxopiperazines as P1'-P2' ligands.
Ghosh, A.K., Brindisi, M., Yen, Y.C., Cardenas, E.L., Ella-Menye, J.R., Kumaragurubaran, N., Huang, X., Tang, J., Mesecar, A.D.(2017) Bioorg Med Chem Lett 27: 2432-2438
- PubMed: 28427814
- DOI: https://doi.org/10.1016/j.bmcl.2017.04.011
- Primary Citation of Related Structures:
5V0N - PubMed Abstract:
We report the design and synthesis of a series of BACE1 inhibitors incorporating mono- and bicyclic 6-substituted 2-oxopiperazines as novel P1' and P2' ligands and isophthalamide derivative as P2-P3 ligands. Among mono-substituted 2-oxopiperazines, inhibitor 5a with N-benzyl-2-oxopiperazine and isophthalamide showed potent BACE1 inhibitory activity (K i =2nM). Inhibitor 5g, with N-benzyl-2-oxopiperazine and substituted indole-derived P2-ligand showed a reduction in potency. The X-ray crystal structure of 5g-bound BACE1 was determined and used to design a set of disubstituted 2-oxopiperazines and bicyclic derivatives that were subsequently investigated. Inhibitor 6j with an oxazolidinone derivative showed a BACE1 inhibitory activity of 23nM and cellular EC 50 of 80nM.
Organizational Affiliation:
Department of Chemistry, Purdue University, West Lafayette, IN 47907, United States; Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, United States. Electronic address: akghosh@purdue.edu.
