| 摘要 |
The invention described herein are compounds in accordance with formula I:. I Iwherein R>1<, R>2<, R>3<, R>4<, R>5<, R>6<, R>2<, R>8<, R>9<, n, X, and Z are as defined herein, pharmaceutical compositions containing at least one compound of formula I, methods of preparation thereof, and methods of treating disorders with at least one compound of formula I or at least one compound of formula I in association with at least one acetylcholinesterase inhibitor.
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