Pyridazinoquinoline compounds

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 471/04 (2006.01) A61K 31/495 (2006.01) A61K 31/53 (2006.01) C07D 471/14 (2006.01) C07D 491/147 (2006.01) C07D 495/14 (2006.01)

Patent

CA 2202135

The invention relates to pyridazinoquinoline coumpounds of formulae A and A', wherein: ring A is chosen from an ortho fused aromatic or heteroaromatic five- or six-membered ring; R4 is selected from the group consisting of halo, (1- 4C)alkyl, NO2, CN, (C1-3)perfluoroalkyl, OH, OCF3, (2-4C)alkenyl, (2- 4C)alkynyl, O(1-4C)alkyl, NR'R", SO2NR'R", or SOmR'; R1 is selected from H, (1- 6C)alkyl, or -(CH2)nL; R2 is selected from H or -(CH2)nL; L is a variety of substituents including phenyl, heterocyclic groups and heteroaryl; n is 0-6; m is 0-2, R5 is selected from H, (1-6C)alkyl or (1-6C)alkylaryl; R3 is selected from H or -(CO)R6 wherein R6 is selected from a variety of substituents including hydrogen, (1-12C)alkyl, pyridyl, phenyl, pyridyl (1-12C)alkyl and phenyl (1-4C)alkyl; and R' and R" are selected from H, (1-4C)alkyl, (3- 6C)cycloalkyl, phenyl (0-4)alkyl-, heterocycle (0-4C)alkyl- or heteroaryl (0- 4C)alkyl- to pharmaceutical compositions containing them and to methods for the treatment of neurological disorders utilizing them.

L'invention porte sur des composés de pyridazinoquinoléine des formules (A) et (A'). Dans ces composés, le noyau A est choisi parmi un cycle aromatique ou hétéroaromatique fusionné en ortho à 5 ou 6 éléments; R?4¿ est choisi parmi un groupe constitué de halo, de (1-4C)alkyle, de NO¿2?, de CN, de (C1-3)perfluoroalkyle, de OH, de OCF¿3?, de (2-4C)alkényle, de (2-4C)alkynyle, de 0(1-4C)alkyle, de NR'R", de SO¿2?NR'R" ou de SO¿m?R'; R?1¿ est choisi parmi de l'hydrogène, du (1-6C)alkyle ou du -(CH¿2?)¿n?L; R?2¿ est choisi parmi de l'hydrogène ou du -(CH¿2?)¿n?L; L représente divers substituants constitués de phényle, de groupes hétérocycliques et de hétéroaryle; n va de 0 à 6; m de 0 à 2, R?5¿ est choisi parmi de l'hydrogène, du (1-6C)alkyle ou du (1-6C)alkylearyle; R?3¿ est choisi parmi de l'hydrogène ou du -(CO)R?6¿, où R?6¿ est choisi parmi divers substituants comprenant de l'hydrogène, du (1-12C)alkyle, du pyridyle, du phényle, du pyridyle (1-12C)alkyle et du phényle (1-4C)alkyle; et R' et R" sont choisis parmi de l'hydrogène, du (1-4C)alkyle, du (3-6C)cycloalkyle, du phényle (0-4)alkyle-, de l'hétérocycle (0-4C)alkyle- ou de l'hétéroaryle (0-4C)alkyle-. L'invention porte également sur des compositions pharmaceutiques comprenant ces substances et sur des procédés destinés au traitement de troubles neurologiques qui en font usage.

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