Novel N-(4-piperidinyl) bicyclic condensed 2-imidazolamine derivatives of formula
wherein: A1 =A2-A3=A4 is -CH =CH-CH =CH-, -N=CH-CH=CH-, -CH =N-CH =CH-, -CH =CH-N =CH or -CH =CH-CH = N-; R is hydrogen or C1-6alkyl; R1 is furanyl substituted with C1-6 alkyl, pyrazinyl, thiazolyl, or imidazolyl optionally substituted with C1-6alkyl; L is C3-6alkenyl optionally substituted with Ar3, or L is a radical of formula -Alk-R3, -Alk-O-R4, -Alk-N-(RS)-R6, -Alk-Z-C(=O)-R7 or -CH2-CH(OH)-CH2-O-R9; the pharmaceutically acceptable acid addition salts and possible stereochemically isomeric forms thereof, which compounds are anti-histaminic agents; pharmaceutical compositions containing such compounds as an active ingredient and methods of preparing said compounds and pharmaceutical compositions.
Novel N-(4-piperidinyl)bicyclic condensed 2-imidazolamine derivatives and their pharmaceutically acceptable acid addition salts having anti-histaminic properties, compositions containing the same, and methods of treating allergic diseases in warm-blooded animals.