- Discovery and SAR of isonicotinamide BACE-1 inhibitors that bind beta-secretase in a N-terminal 10s-loop down conformation.
Discovery and SAR of isonicotinamide BACE-1 inhibitors that bind beta-secretase in a N-terminal 10s-loop down conformation.
Bioorganic & medicinal chemistry letters (2007-01-30)
Shaun R Stauffer, Matthew G Stanton, Alison R Gregro, Melissa A Steinbeiser, Jennifer R Shaffer, Philippe G Nantermet, James C Barrow, Kenneth E Rittle, Dennis Collusi, Amy S Espeseth, Ming-Tain Lai, Beth L Pietrak, M Katharine Holloway, Georgia B McGaughey, Sanjeev K Munshi, Jerome H Hochman, Adam J Simon, Harold G Selnick, Samuel L Graham, Joseph P Vacca
PMID17257835
ABSTRACT
A series of low-molecular weight 2,6-diamino-isonicotinamide BACE-1 inhibitors containing an amine transition-state isostere were synthesized and shown to be highly potent in both enzymatic and cell-based assays. These inhibitors contain a trans-S,S-methyl cyclopropane P(3) which bind BACE-1 in a 10s-loop down conformation giving rise to highly potent compounds with favorable molecular weight and moderate to high susceptibility to P-glycoprotein (P-gp) efflux.