6-arylamino-5-cyano-4-pyrimidinones as pde9a inhibitors

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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C544S319000

Reexamination Certificate

active

07488733

ABSTRACT:
The invention relates to novel 6-arylamino-5-cyano-4-pyrimidinones of formula (I)methods for the production thereof, and the use thereof for producing medicaments utilized for improving awareness, concentration, learning capacity, and/or retentiveness of memory. Said compounds (I) show activity as PDE9 inhibitors.

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