| abstract |
PGD 2 antagonistic activity and inhibitory activity of eosinophil infiltration, and have diseases such as systemic mastocytosis and systemic mast cell activity disorders as well as organ contraction, asthma, allergic rhinitis, allergic conjunctivitis, urticaria, ischemic reperfusion injury, inflammation and atopic dermatitis Provided are compounds of formula (I), pharmaceutically acceptable salts or hydrates thereof, useful as agents for the treatment of:n n n [Formula I] |