Novel antiarrhythmic compounds

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 217/18 (2006.01) A61K 31/135 (2006.01) A61K 31/165 (2006.01) A61K 31/17 (2006.01) A61K 31/18 (2006.01) C07C 233/36 (2006.01) C07C 233/78 (2006.01) C07C 275/40 (2006.01) C07C 311/08 (2006.01) C07C 335/20 (2006.01)

Patent

CA 2313191

The invention relates to compounds of formula (I), wherein R1 and R2, independently from each other, mean hydrogen, halogen or C1-4 alkyl group; R3, R4 and R5, independently from each other, stand for hydrogen or C1-4 alkyl group; R6 represents hydrogen, C1-4 alkyl or benzyl group; R7 means nitro group or amino group optionally monosubstituted by C1-4 alkyl, benzoyl, C1-4 alkylcarbonyl, C1-4 alkylsulfonyl, C1-4 alkylcarbamoyl or C1-4 alkylthiocarbamoyl group; both n and m are 0 or 1, with the proviso that R2 is different from hydrogen, when R1 is hydrogen, as well as stereoisomers or mixtures of stereoisomers thereof, acid addition salts thereof and hydrates, prodrugs and metabolites of all these compounds. The invention relates also to the pharmaceutical compositions comprising the above compounds. The compounds according to the invention possess valuable antiarrhythmic effect.

L'invention concerne des composés représentés par la formule (I) dans laquelle R?1¿ et R?2¿ représentent indépendamment l'un de l'autre l'hydrogène, l'halogène ou un groupe alkyle C¿1-4?; R?3¿, R?4¿ et R?5¿ représentent indépendamment les uns des autres l'hydrogène ou un groupe alkyle C¿1-4?; R?6¿ représente l'hydrogène, l'alkyle C¿1-4? ou un groupe benzyle; R?7¿ représente un groupe nitro ou un groupe amino éventuellement monosubstitué par un groupe alkyle C¿1-4?, benzoyle, alkylcarbonyle C¿1-4?, alkylsulfonyle C¿1-4?, alkylcarbamoyle C¿1-4? ou alkylthiocarbamoyle C¿1-4?; n et m sont tous deux 0 ou 1, avec la restriction suivante: lorsque R?1¿ est l'hydrogène, R?2¿ doit être autre que l'hydrogène. L'invention concerne également les stéréoisomères ou les mélanges de stéréoisomères de ces composés et les sels d'addition d'acide de ces derniers, ainsi que les hydrates, bioprécurseurs et métabolites de tous ces composés. L'invention concerne en outre les compositions pharmaceutiques comprenant les composés ci-dessus. Ces composés présentent un effet anti-arythmique intéressant.

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