Pyrrole and pyrazole derivatives as potentiators of...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C514S372000, C514S378000, C514S381000, C514S383000, C514S406000, C548S253000, C548S364100, C548S517000, C548S530000

Reexamination Certificate

active

07625932

ABSTRACT:
The present invention relates to pyrrole and pyrazole compounds of formula (I) and their pharmaceutically acceptable salts, and further relates to their use in treating schizophrenia, cognitive deficits associated with schizophrenia, Alzheimer's disease, dementia of the Alzheimer's type, mild cognitive impairment, or depression. The compounds act as potentiators on glutamate receptors, in particular AMPA and the GluR family.

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Abdelhamid, Abdou O. et al., Synthesis of Pyridazine, Pyridazin-3-One, 2-Amino Pyrrole and 2,5-Diamino-Pyridine Derivatives From Propanedinitrile, Rev. Port. Quim., 1985, 500-504, 27, 500.
Abdelhamid, Abdou O. et al., Synthesis of Pyridazine, Pyridazin-3-One, 2-Aminopyrrole and 2,5-Diaminopyridine Derivatives From Dicyanomethylene Compounds, Heterocycles, 1986, 101-107, 24, 1.
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Ornstein, Paul L. et al., Biarylpropylsulfonamides as Novel, Potent Potntiators of 2-Amino-3-(5-methyl-3-hydroxyisoxazol-4-yl)-propanoic Acid (AMPA) Receptors, J. Med Chem, 2000, 4354-4358, 43.

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