Imidazoquinolines containing other heterocyclic groups

Abstract From the Canadian patent

Compounds of Formula I, (I), wherein A is a C1-C4 straight or branched alkylene chain which may be saturated or unsaturated, B is a C2-C4 straight or branched alkylene chain which may be saturated or unsaturated, R1 and R2 are the same or different and are hydrogen aklyl, alkoxy, alkoxyalkyl, hydroxyalkyl hydroxy, halogen, nitro, carboxy, carboxylic ester carbamoyl, carbamoyloxy, cyano, acyl, acylamino or trifluoromethyl Het is a heterocyclic, group chosen from imidazolyl imidazolinyl, benzimidazolyl, thiazolyl thiazolinyl, quinolyl, piperidyl, pyridyl benzothiazolyl and pyrimidyl, any of which heterocyclic groups may be substituted, and x is 0 or 1, and pharmaceutically acceptable salts …