| 摘要 |
Tricyclic triazolobenzazepine derivatives in the form of a prodrug are provided. The compounds according to the present invention are those represented by formula (I) and pharmacologically acceptable salts and solvates thereof. The compounds are useful as antiallergic agents and exhibit excellent bioavailability. wherein R1 represents hydrogen, OH, alkyl or phenyl alkyl, R2, R3, R4, and R5 represent hydrogen, halogen, optionally protected hydroxyl, formyl, optionally substituted alkyl, alkenyl, alkoxy or the like, and Q represents a group selected from the following groups (i) to (iv), halogen, or alkoxy:
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