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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C514S334000, C514S336000, C514S344000, C514S352000, C546S257000, C546S258000, C546S281400, C546S289000, C546S307000, C546S308000, C546S309000, C546S310000, C546S311000

Reexamination Certificate

active

07435743

ABSTRACT:
Pyrimidine 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 hydrogen, —CR31R32R33; R4is hydrogen, 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:
patent: 4003908 (1977-01-01), Denzel et al.
patent: WO 01/27103 (2001-04-01), None
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