- Discovery and structure-activity relationship of quinuclidine benzamides as agonists of α7 nicotinic acetylcholine receptors
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A library of benzamides was tested for α7 nicotinic acetylcholine receptor (nAChR) agonist activity using a chimeric receptor in a functional, cell-based, high-throughput assay. From this library, quinuclidine benzamides were found to have α7 nAChR agonist activity. The SAR diverged from the activity of this compound class verses the 5-HT3 receptor, a structural homologue of the α7 nAChR. PNU-282987, the most potent compound from this series, was also shown to open native α7 nAChRs in cultured rat neurons and to reverse an amphetamine-induced gating deficit in rats.
- Bodnar, Alice L.,Cortes-Burgos, Luz A.,Cook, Karen K.,Dinh, Dac M.,Groppi, Vincent E.,Hajos, Mihaly,Higdon, Nicole R.,Hoffmann, William E.,Hurst, Raymond S.,Myers, Jason K.,Rogers, Bruce N.,Wall, Theron M.,Wolfe, Mark L.,Wong, Erik
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p. 905 - 908
(2007/10/03)
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- Anxiolytic-R-n(1-azabicyclo[2.2.2]oct-3-yl) benzamides and thiobenzamides
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Compounds of general formula I STR1 wherein: X represents oxygen or sulphur; each of R1 and R3 independently represents hydrogen or a C1 -C4 alkyl group; Ar represents: a phenyl ring optionally substituted by one, two or three C1 -C4 alkoxy groups and/or by one or two halogen atoms; a phenyl ring of the general formula STR2 wherein R2 represents halogen, 4,5-benzo, C1 -C8 alkoxy, C1 -C4 alkylcarbonyl or Am, wherein Am represents amino, methylamino or dimethylamino, R4 represents C1 -C8 alkyl, n is 1 or 2; or a pyrimidinyl moiety of the general formula STR3 wherein R5 is C1 -C4 alkyl; and their N-oxides and pharmaceutically acceptable salts are useful as anxiolytic agents. A preferred compound is R-(+)-4-amino-N-(1-azabicyclo[2.2.2]oct-3-yl)-5-chloro-2-methoxybenzamide.
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- Method of treating or preventing schizophrenia and/or psychosis using S-N-(1-azabicyclo[2.2.2]oct-3-yl)benzamides and thiobenzamides
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Compounds of general formula I STR1 wherein: X represents oxygen or sulphur; each of R1 and R3 independently represents hydrogen or a C1 -C4 alkyl group; Ar represents: a phenyl ring optionally substituted by one, two or three C1 -C4 alkoxy groups and/or by one or two halogen atoms; a phenyl ring of the general formula STR2 wherein R2 represents halogen, 4,5-benzo, C1 -C8 alkoxy, C1 -C4 alkylcarbonyl or Am, wherein Am represents amino, methylamino or dimethylamino, R4 represents C1 -C8 alkyl, n is 1 or 2; or a pyrimidinyl moiety of the general formula STR3 wherein R5 is C1 -C4 alkyl; and their N-oxides and pharmaceutically acceptable salts are useful as antischizophrenic and/or antipsychotic agents. A preferred compound is S(-)-4-amino-N-(1-azabicyclo[2.2.2]oct-3-yl)-5-chloro-2-methoxybenzamide.
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