4-aminopyrimidine derivatives

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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Details

C544S317000

Reexamination Certificate

active

07138404

ABSTRACT:
This invention is 4-aminopyrimidine derivatives of the formulawherein R1, R2, R3and R4are as defined in the specification or a pharmaceutically acceptable salt thereof. The invention also is the preparation of compounds of formula I, pharmaceutical compositions containing therapeutically effective amounts of compounds of formula I or pharmaceutically acceptable salts thereof and to a method of treatment comprising administering therapeutically effective amounts of the compound of formula I for the prevention or treatment of mGluR5 receptor mediated disorders.

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