Sodium channel blockers

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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C514S242000, C544S182000, C544S216000

Reexamination Certificate

active

10828171

ABSTRACT:
The present invention relates to a compound represented by formula (I):in which at least one of R3and R4is a group represented by formula (A):where the structural variables are as defined herein. The compounds are useful for blocking sodium channels.

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Form PCT/IPEA/408, Written Opinion for International Application No. PCT/US03/04817, filed Feb. 19, 2003.

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