Carboxylic acid derivative compounds and drugs comprising...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Radical -xh acid – or anhydride – acid halide or salt thereof...

Reexamination Certificate

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C562S442000, C562S405000, C560S019000, C560S021000, C560S155000, C549S362000, C549S434000, C548S375100, C546S290000, C514S464000, C514S539000

Reexamination Certificate

active

07491748

ABSTRACT:
A carboxylic acid derivative of formula (I):wherein R1is —COOH, —COOR6, etc.; A is a single bond, alkylene, etc.; R2is alkyl, alkoxy, etc.; B is a carbocyclic ring or a heterocyclic ring; Q is alkylnene-Cyc2, etc.; D is a linking chain; and R3is alkyl, a carbocyclic ring or a heterocyclic ring, or a non-toxic salt thereof. The compound of formula (I) binds to PGE2receptor, especially subtypes EP3and/or EP4and show the antagonizing activity, are useful for the prevention and/or treatment of diseases induced pain, itch, urticaria, allergy, urinary frequency, urinary disturbance, Alzheimer's disease, cancer, dysmenorrhea, endometriosis, etc.

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