abstract |
This invention concerns a compound of formula (I), a N-oxide, a pharmaceutically acceptable addition salt, a quaternary arnine and a stereochernic ally isomeric form thereof, wherein ring A represents phenyl, pyridyl, pyrimidinyl, pyridazinyl or pyrazinyl; R1 represents hydrogen; aryl; formyI; Cl.6alkylcarbonyl, C1-6alkyl; C1-6alkyloxycarbonyl; C1-6alkyl substituted with formyl, C1-6alkylearbonyl, C1-6alkyloxycarbonyl, C1-6alkylcarbonyloxy; or C1-6alkyloxyC1-6alkylcarbonyl optionally substituted with C1-6alkyloxycarbonyl; X represents a direct bond; -(CH2)n3or -(CH2)m4-X1a-X1b-; R2 represents C3-7cycloalkyl; phenyl; a 4, 5, 6- or 7-membered monocyclic heterocycle containing at least one heteroatom. selected from 0, S or N; benzoxazolyl or a radical of formula (a-1), wherein said R2 substituent may optionally be substituted; R3 represents halo; hydroxy; optionally substituted C1-.6alkyl; C2-6a]kenyl or C2-6alkynyl, each optionally substituted; optionally substituted polyhaloC1-6alkyl; optionally substituted C1-6alkyloxy; optionally substituted polyhaloC1-6alkyloxy; C1-6alkylthio; polyhaloC1-6a]kylthio; C1-6a]kyloxycarbonyl; C1-6alkylcarbonyloxy; C1-6alkylearbonyl; polyhaloC1-6alkylcarbonyl; cyano; carboxyl; aryloxy; arylthio; arylcarbonyl; NR6b R7b; C(=O)-NR 6b R 7b; -NR5-C(=O)R5;'-S(=O)nl-R8a; -NR5S(=O)nl -R 8a;-NR 5 -S(=O)nl -R 8a ; -S-CN; -NR5 -CN;R4 represents hydrogen; halo; hydroxy; optionally substituted C1-4alkyl; C2-4alkenyl or C2-4alkynyl, each optionally substituted; polyha]oC1-3alkyl; optionally substituted C1-4alkyloxy; polyhalo-C1-3alkyloxy; C1-4alkylthio; polyhaloC1-3alkylthio C1-4alkyloxycarbonyl; C1-4alkylcarbonyloxy; C1-4alkylcarbonyl; polyhatoC1-4alkylcarbonyl; nitro; cyano; carboxyl; NR10 R11; C(=O)NR10-R11;NR5-C(=O)-NR10R11;-NR5 -C(=O)-R5; -S(=O)nl,-R12 -NR5-S(=O)nI-R12 ; -S-CN; -NR5 -CN; their use, pharmaceutical compositions comprising them and processes for their preparation. |