| abstract |
The present invention provides compounds having the formula: n nwherein R 1 , R′, R 2 , R 3 , R 3′ , R 4 , X 1 , X 2 and X 3 are as defined herein, and pharmaceutical compositions thereof. The present invention also provides methods of inhibiting proteases, more specifically aspartyl proteases. In certain embodiments, compounds inhibit BACE (β-site APP-cleaving enzyme), and thus are useful in the treatment or prevention of a disease characterized by β-amyloid deposits in the brain (including, but not limited to, Alzheimer's Disease). The present invention also provides methods for preparing compounds of the invention. |