Isoxazole-imidazole derivatives

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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C514S255050, C514S256000, C514S341000, C514S378000, C544S060000, C544S405000, C546S272100, C548S247000

Reexamination Certificate

active

07851469

ABSTRACT:
The present invention is concerned isoxazole-imidazole derivatives having affinity and selectivity for GABA A α5 receptor binding site, their manufacture, pharmaceutical compositions containing them and their use for enhancing cognition or for the treatment of cognitive disorders like Alzheimer's disease. In particular, the present invention is concerned with aryl-isoxazol-4-yl-imidazole derivatives of formula Iwherein R1, R2and R3are as described in the specification.

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