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Novel non-imidazole compoundsNovel non-imidazole compounds description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20080119487, Novel non-imidazole compounds. Brief Patent Description - Full Patent Description - Patent Application Claims This application claims the benefit of U.S. Provisional Application Ser. No. 60/240,901 filed Oct. 17, 2000. BACKGROUND OF THE INVENTIONWO 95/14007 published May 26, 1995 discloses H3 receptor antagonists of the imidazole type. WO99/24405 published May 20, 1999 discloses H3 receptor ligands of the imidazole type. U.S. Pat. No. 5,869,479 issued Feb. 9, 1999 discloses compositions for the treatment of the symptoms of allergic rhinitis using a combination of at least one histamine H1 receptor antagonist and at least one histamine H3 receptor antagonist. In view of the art's interest in compounds which affect H3 receptors, novel compounds that are antagonists of H3 receptors would be a welcome contribution to the art. This invention provides just such a contribution. SUMMARY OF THE INVENTIONThe present invention provides novel compounds of structure I.
or a pharmaceutically acceptable salt or solvate thereof, wherein (1) R1 is selected from:
(a) aryl;
(b) heteroaryl;
(c) heterocycloalkyl
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