POLYCYCLIC ACID COMPOUNDS USEFUL AS CRTH2 ANTAGONISTS AND ANTIALLERGIC AGENTS

摘要

The present invention relates to a novel compound or a salt thereof, whic h is useful as a CRTH2 antagonist, especially as a medicament for disorder t hat participates eosinophil, for example, allergic disorder such as asthma, allergic rhinitis, allergic dermatitis, conjunctival inflammation, hives, eo sinophilic bronchitis, food allergy, inflammation of the nasal sinuses, mult iple sclerosis, angiitis, or chronic obstructive pulmonary disease (COPD) an d the like.