NOVEL HISTAMINE H3-RECEPTOR LIGANDS AND THEIR THERAPEUTIC APPLICATIONS
申请人:Bertrand Isabelle
公开号:US20090111808A1
公开(公告)日:2009-04-30
The present patent application concerns compounds of formula (I) with R1 and R2 taken together with the nitrogen atom to which they are attached, form a mono or bicyclic saturated nitrogen-containing ring; their preparation and their use as a H3 receptor ligand for treating e.g. CNS disorders like Alzheimer's disease.
Synthesis and biological evaluation of potent histamine H-3 receptor antagonists incorporating a hydroxyl function are described. Compounds in this series exhibited nanomolar binding affinities for human receptor, illustrating a new possible component for the H-3 pharmacophore. As demonstrated with compound BP1.4160 (cyclohexanol 19), the introduction of an alcohol function counter-intuitively allowed to reach high in vivo efficiency and favorable pharmacokinetic profile with reduced half-life. (C) 2013 Elsevier Ltd. All rights reserved.