IMIDAZO2,1-B3BENZAZEPINE DERIVATIVES, PHARMACEUTICAL COMPOSITIONS CONTAINING, AND PROCESS FOR PREPARING THEM AND INTERMEDIATES

摘要

The present invention is concerned with novel imidazo[2,1-b][3]benzazepines of formula CHEM the pharmaceutically acceptable addition salts and stereochemically isomeric forms thereof, wherein each of the dotted lines independently represents an optional bond; R1 represents hydrogen, halo, C1-4alkyl or C1-4alkyloxy; R2 represents hydrogen, halo, C1-4alkyl or C1-4alkyloxy; R3 represents hydrogen, C1-4alkyl, ethenyl substituted with hydroxycarbonyl or C1-4alkyloxycarbonyl, C1-4alkyl substituted with hydroxycarbonyl or C1-4alkyloxycarbonyl, hydroxyC1-4alkyl, formyl or hydroxycarbonyl; R4 represents hydrogen, C1-4alkyl, hydroxyC1-4alkyl, phenyl or halo; R5 represents hydrogen, C1-4alkyl or halo; L represents hydrogen; C1-6alkyl; C1-6alkyl substituted with one substituent selected from the group consisting of hydroxy, halo, C1-4alkyloxy, hydroxycarbonyl, C1-4alkyloxycarbonyl, C1-4alkyloxycarbonyl-C1-4alkyloxy, hydroxycarbonylC1-4alkyloxy, C1-4alkyloxycarbonylamino, C1-4alkylaminocarbonyl, C1-4alkylaminocarbonylamino, C1-4alkylaminothiocarbonylamino, aryl, aryloxy and arylcarbonyl; C1-6alkyl substituted with both hydroxy and aryloxy; C3-6alkenyl; C3-6alkenyl substituted with aryl; or, L represents a radical of formula -Alk-Y-Het1 (a-1), -Alk-NH-CO-Het2 (a-2) or -Alk-Het3 (a-3); provided that 6,11-dihydro-11-(4-piperidinylidene)-5H-imidazo[2,1-b][3]benzazepine is ecxluded, which are useful antiallergic compounds. Compositions comprising said compounds, methods of using and processes for preparing the same.