Benzo¬5,6|cyclohepta¬1,2-b|pyridine derivatives and...

C - Chemistry – Metallurgy – 07 – D

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C07D 401/08 (2006.01) A61K 31/445 (2006.01) C07D 401/04 (2006.01)

Patent

CA 2059363

Benzo[5,6]cyclohepta[1,2-b]pyridine derivatives of the following formula: (see fig. I) wherein R1 represents a cyano, carbamoyl, alkylsulfoxy, alkylsulfonyl, tetrazolyl or sulfonic acid group, and R2 represents a hydrogen atom, a cyano, phenyl, aralkyl, alkoxycarbonylalkyl, aminoalkylcarbamoylalkyl or lower alkyl group, or a group Image or -X-R4, X being an oxygen or sulfur atom, R3 standing for a hydrogen atom or a substituted or unsubstituted lower alkyl, phenyl or aralkyl group, and R4 being a substituted or unsubstituted lower alkyl, phenyl or aralkyl group or an aminoalkyl group, and salts thereof. Antiallergic and antihistamic agents containing one of the above derivatives or salts as an active ingredient are also described.

Dérivés de benzo¢5,6!cyclohepta¢1,2-b!pyridine de formule (voir fig. I), où : R1 représente un groupe cyano, carbamoyle, alkylsulfoxy, alkylsulfonyle, tétrazolyle ou acide sulfonique; R2 représente un atome d'hydrogène ou un groupe cyano, phényle, aralkyle, alcoxycarbonylalkyle, aminoalkylcarbamoylalkyle ou alkyle inférieur, ou encore un groupe Image ou -X-R4, X étant un atome d'oxygène ou de soufre; R3 représente un atome d'hydrogène ou un groupe phényle, aralkyle ou alkyle avec ou sans substitution; enfin R4 est un groupe phényle, aralkyle ou alkyle avec ou sans substitution, ou un groupe aminoalkyle. Sels de ces dérivés. On décrit également des agents antiallergènes et antihistaminiques contenant les dérivés ou les sels précités comme ingrédients actifs.

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