Highly potent macrocyclic BACE-1 inhibitors incorporating a hydroxyethylamine core: design, synthesis and X-ray crystal structures of enzyme inhibitor complexes.Sandgren, V., Agback, T., Johansson, P.O., Lindberg, J., Kvarnstrom, I., Samuelsson, B., Belda, O., Dahlgren, A.
(2012) Bioorg Med Chem 20: 4377-4389
- PubMed: 22698785
- DOI: https://doi.org/10.1016/j.bmc.2012.05.039
- Primary Citation of Related Structures:
- PubMed Abstract:
A series of P1-P3 linked macrocyclic BACE-1 inhibitors containing a hydroxyethylamine (HEA) isostere scaffold has been synthesized. All inhibitors comprise a toluene or N-phenylmethanesulfonamide P2 moiety. Excellent BACE-1 potencies, both in enzymatic and cell-based assays, were observed in this series of target compounds, with the best candidates displaying cell-based IC(50) values in the low nanomolar range. As an attempt to improve potency, a phenyl substituent aiming at the S3 subpocket was introduced in the macrocyclic ring. X-ray analyzes were performed on selected compounds, and enzyme-inhibitor interactions are discussed.
Department of Chemistry, Linköping University, S-581 83 Linköping, Sweden.