The present invention is directed to novel inhibitors of the BACE1 enzyme. Separate aspects of the invention are directed to pharmaceutical compositions comprising said compounds and uses of the compounds to treat disorders for which the reduction of A β deposits is beneficial such as Alzheimer’s disease.本發明係針對RACE1酶之新穎抑制劑。本發明之單獨方面針對包括所述化合物之藥物組成物以及該等化合物治療對其而言A β沈積物之減少係有益的障礙(例如阿茲海默症)之用途。