HISTAMINE H3-RECEPT0R LIGANDS AND THEIR THERAPEUTIC APPLICATION

摘要

The present patent application concerns new compounds of formula (I) with R<SUP>1</SUP> and R<SUP>2</SUP> taken together with the nitrogen atom to which they are attached, form a saturated nitrogen-containing ring, A is a saturated C1 -4 alkylene and B a C3-4 alkylene or alkenylene chain; their preparation and their use as a H3 receptor ligand for treating e.g. CNS disorders like Alzheimer's disease.