Substituted 2-thio-3,5-dicyano-4-aryl-6-aminopyridines and...

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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C546S287000

Reexamination Certificate

active

07135486

ABSTRACT:
This application relates to compounds of formula (I),wherein R1, R2, R3, and R4are defined as recited in the claims, or a tautomer, salt, hydrate, or alkoxide thereof. A process for preparing such materials, pharmaceutical compositions containing them, and methods of treating a cardiovascular disorder by administering them to a patient are also disclosed and claimed.

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