Benzimidazole compounds having nociceptin receptor affinity

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

C546S199000

Reexamination Certificate

active

07456198

ABSTRACT:
Disclosed are compounds of the formula (I)wherein A, R1, R2, R3, R4and X1are as disclosed herein. The compounds have affinity for the ORL1 receptor and are useful in the treatment of chronic and acute pain.

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Hcaplus 129:290436.
Hcaplus 130:52418.
Obase, et al., “New Antihypertensive Agents. I. Synthesis and Antihypertensive Activity of Some 4-Piperidylbensimidasolinone Derivatives”, Chemical Pharmaceutical Bulletin, vol. 30, pp. 462-473, 1982.

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