Triazaspiro[5.5]undecane derivative and pharmaceutical...

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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Details

C514S253010, C544S121000, C544S231000

Reexamination Certificate

active

11135272

ABSTRACT:
Triazaspiro[5.5]undecane derivatives of the formula (I), quaternary ammonium salts thereof, N-oxides thereof, non-toxic salts thereof, or pharmaceutical compositions comprising them, as active ingredients (wherein R1is formula (II) or formula (III); R2is alkyl or alkynyl etc.; R3, R4is H, (substituted) alkyl etc., or R3and R4together to form formula (IV); R5is H or alkyl).Therefore the compounds of the formula (I) regulate the effect of chemokine/chemokine receptor, they are used for prevention and treatment of various inflammatory diseases, asthma, atopic dermatitis, urticaria, allergic diseases, nephritis, nephropathy, hepatitis, arthritis or rheumatoid arthritis etc.

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Maeda et al, “Novel Low Molecular Weight Spirodiketopiperazine Derivatives Potently Inhibit R5 HIV-1 Infection through Antagonistic Effects on CCR5” Journal of Biological Chemistry, vol. 276(37), pp. 35194-35200 (2001).
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