Second Generation of Bace-1 Inhibitors. Part 1: The Need for Improved Pharmacokinetics.
Charrier, N., Clarke, B., Cutler, L., Demont, E., Dingwall, C., Dunsdon, R., Hawkins, J., Howes, C., Hubbard, J., Hussain, I., Maile, G., Matico, R., Mosley, J., Naylor, A., O'Brien, A., Redshaw, S., Rowland, P., Soleil, V., Smith, K.J., Sweitzer, S., Theobald, P., Vesey, D., Walter, D.S., Wayne, G.(2009) Bioorg Med Chem Lett 19: 3664
- PubMed: 19428244 
- DOI: https://doi.org/10.1016/j.bmcl.2009.03.165
- Primary Citation of Related Structures:  
2WEZ, 2WF0 - PubMed Abstract: 
Inhibition of the aspartyl protease BACE-1 has the potential to deliver a disease-modifying therapy for Alzheimer's disease. We have recently disclosed a series of transition-state mimetic BACE-1 inhibitors showing nanomolar potency in cell-based assays. Amongst them, GSK188909 (compound 2) had favorable pharmacokinetics and was the first orally bioavailable inhibitor reported to demonstrate brain amyloid lowering in an animal model. In this Letter, we describe the reasons that led us to favor a second generation of inhibitors for further in vivo studies.
Organizational Affiliation: 
Neurology and Gastrointestinal Centre of Excellence for Drug Discovery, GlaxoSmithKline R&D, New Frontiers Science Park, Third Avenue, Harlow, Essex CM19 5AW, United Kingdom.