摘要 |
Compounds of the Formula I: wherein m, n, k, A, X, Y, Z, Ar, R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3</SUP>, and R<SUP>4 </SUP>are as defined herein. The compounds are useful as 5-HT6 receptor antagonists. Also provided are compositions comprising, methods of using, and methods of making the subject compounds.
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