| abstract |
This invention concerns a compound of formula n n na N-oxide, a pharmaceutically acceptable addition salt, a quaternary amine and a stereochemically isomeric form thereof, wherein ring A represents a 6-membered heterocycle; R 1 is hydrogen; aryl; formyl; C 1-6 alkylcarbonyl; optionally substituted C 1-6 alkyl; C 1-6 alkyloxycarbonyl; optionally substituted C 1-6 alkyloxyC 1-6 alkylcarbonyl; X is a direct bond or a linker atom or group; Z is O or S; R 2 is hydrogen, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, a carbocycle or a heterocycle, each of said groups may optionally be substituted; R 3 is hydrogen; hydroxy; halo; optionally substituted C 1-6 alkyl or C 2-6 alkenyl or C 2-6 alkynyl; C 1-6 alkyloxy; C 1-6 alkylthio; C 1-6 alkyloxycarbonyl; C 1-6 alkylcarbonyloxy; carboxyl; cyano; nitro; amino; mono- or di(C 1-6 alkyl)amino; polyhaloC 1-6 alkyl; polyhaloC 1-6 alkyloxy; polyhaloC 1-6 alkylthio; R 21 ; R 21 -C 1-6 alkyl; R 21 —O—; R 21 —S—; R 21 —C(═O)—; R 21 —S(═O) p —; R 7 —S(═O) p —; R 7 —S(═O) p —NH—; R 21 —S(═O) p —NH—; R 7 —C(═O)—; —NHC(═O)H; —C(═O)NHNH 2 ; R 7 —C(═O)—NH—; R 21 —C(═O)—NH—; —C(═NH)R 7 ; —C(═NH)R 21 ; R 4a or R 4b each independently represent hydrogen, R 8 , —Y 1 —NR 9 —Y 2 —NR 10 R 11 , —Y 1 —NR 9 —Y 1 —R 8 , —Y 1 —NR 9 R 10 ; provided that —X—R 2 and/or R 3 is other than hydrogen; their use, pharmaceutical compositions comprising them and processes for their preparation. |