Pyridine 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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C514S333000, C514S334000, C514S344000, C514S352000, C546S281400, C546S193000, C546S194000, C546S257000, C546S289000, C546S311000, C546S312000

Reexamination Certificate

active

06984649

ABSTRACT:
Pyridine compounds of general formula:wherein —R1representsin which R11is hydrogen, C1-6alkyl, halogen, hydroxy, C1-12alkoxy, nitro, amino, C1-6alkylsulfonylamino, C1-6alkoxycarbonyl, C1-6alkylamino, di (C1-6alkyl)amino, C1-6alkanoylamino, phenyl C1-6alkylamino, phenylsulfonylamino, or —O—(CH2)n—R111; R2represents hydrogen or halogen; R3represents 1.2.3.6-tetrahydro-pyridine, or —CR31R32R33wherein R31represents H or C1-6alkyl and R32and R33are joined to form a 5-8 membered saturated ring optionally containing up to three heteroatoms; R4is carbamoyl, CN, carboxyl, etc.; R5is amino, C1-6alkylamino, di C1-6alkylamino, etc. or salt thereof. The compound has an excellent anti-inflammatory activity, and other biological activity.

REFERENCES:
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patent: 0127103 (2001-04-01), None
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