Amphoteric tricyclic compound

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 491/044 (2006.01) A61K 31/445 (2006.01) C07D 491/04 (2006.01)

Patent

CA 2089207

Novel amphoteric tricyclic compound represented by the following formula: Image wherein R1 represents a hydrogen atom or a halogen atom; X represents -O-, -CH2O-, or -OCH2-; and Y represents a C2-C5 alkylene group which may optionally be substituted with a lower alkyl group, and a pharmacologically acceptable salt thereof are disclosed. Also disclosed are a method for preparing the same, a pharmaceutical composition comprising the same useful as an antiallergic agent and an agent for bronchial asthma, and a method for treatment of an allergic disease or bronchial asthma comprising the step of administering the same.

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