SPIRO-AMINO-IMIDAZOLONE AND SPIRO-AMINO-DIHYDRO-PYRIMIDINONE COMPOUNDS AS BETA-SECRETASE MODULATORS AND METHODS OF USE

摘要

The present invention provides a new class of compounds useful for the modulation of beta-secretase enzyme (BACE) activity. The compounds have a general Formula (I), wherein variables A1, A3, A4, A5, A6, A8, L, R2, R7, R9, W and Y of Formula (I) are defined herein. The invention also provides pharmaceutical compositions comprising the compounds, and corresponding uses of the compounds and compositions for treatment of disorders and/or conditions related to plaque formation and deposition, resulting from the activity of BACE. Such BACE mediated disorders include, for example, Alzheimer's Disease, cognitive deficits, cognitive impairments, schizophrenia and other central nervous system conditions. The invention further provides compounds of Formulas (II) and (III), sub-Formula embodiments of Formulas (I), (II) and (III), intermediates and processes and methods useful for the preparation of compounds of Formulae (I-III).