Novel amphoteric tricyclic compound represented by the following formula: ##STR1## wherein R.sup.1 represents a hydrogen atom or a halogen atom; X represents --O--, --CH.sub.2 O--, or --OCH.sub.2 --; and Y represents a C.sub.2 -C.sub.5 alkylene group which may optionally be substituted with a lower alkyl group, and a pharmacologically acceptable salt thereof are disclosed. Also disclosed are a pharmaceutical composition comprising the same and a method for treatment of an allergic disease or bronchial asthma.
Amphoteric tricyclic compounds as antihistaminic and antiallergic agents
申请人:HOKURIKU PHARMACEUTICAL CO., LTD.
公开号:EP0556813A1
公开(公告)日:1993-08-25
Novel amphoteric tricyclic compound represented by the following formula:
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.
New 3-(3-methoxyphenoxy)-2-pyridinecarbonitriles, which are useful as pharmacological agents, especially as agents for the treatment of senility and reversal of amnesia, are disclosed. Other known 3-(3-substituted phenoxy)-2-pyridinecarbonitriles are disclosed having the same utility. The compounds can be produced by dehydrating the appropriately substituted oxime or displacing an alkoxy group to give the desired carbonitrile.