Histamine H3-receptor ligands and their therapeutic...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C514S299000, C514S318000, C544S129000, C546S194000, C546S236000

Reexamination Certificate

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08076329

ABSTRACT:
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.

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