| abstract |
The present invention comprises a new class of compounds useful for the modulation of Beta-secretase activity and for the treatment of diseases, including Alzheimer's disease (AD) and related CNS conditions, mediated thereby. In one embodiment, the compounds have a general Formula I n n n n n n n n n n or Formula II n n n n n n n n n n wherein R 1a-1c , B, R 3-5 and W of Formula I, and R 1a-1c , R 2-5 , A 1-4 , W, X, Z, m and n of Formula II are defined herein. The invention further provides compounds of Formula III and IV and sub-Formulas II-A-II-D and III-A-III-D. The compounds may be used in pharmaceutical compositions for treating, prophylactically or therapeutically, disorders related to the activity of beta-secretase protein, including without limitation, AD, cognitive deficits and impairment, schizophrenia and other similar central nervous system conditions. |