Compounds of the formula I STR1 and pharmaceutically acceptable salts thereof in which R1 represents hydrogen, halo, cyano, cyanoalkyl, alkyl, alkoxy, phenoxy, phenyl, alkoxycarbonyl, --NR13 R14, --N(R15)SO2 R16, halogenated alkoxy, halogenated alkyl, arylalkoxy, hydroxy, phenylalkyl, alkoxycarbonylvinyl, --S(O)n R7, alkoxycarbonylalkyl, carboxyalkyl, --CONR11 R12 carbamoylvinyl, --OSO2 R21, 4,5-dihydrothiazol-2-yl, 4,4-dimethyl-2-oxazolin-2-yl or --NR60 R61 ; or R1 represents a group of formula --(O)z --L3 G wherein z equals 0 or 1, L3 represents a C1-4 alkylene chain, G represents a group of formula a), b), c), or d): a) --NR22 R23 ; b) --S(O)m R26 ; c) CONR27 R28 ; d) --OR29 ; R2 and R3 independently represent hydrogen, halo, alkyl, alkoxy, --NR13 R14, halogenated alkoxy, halogenated alkyl, hydroxy, --S(O)n R7 or --NR60 R61 ; L1 represents e) a bond, or f) alkylene, cycloalkylene or cycloalkylidene; T represents a bond or O, S, SO, SO2, a carbonyl group, or 1,3-dioxolan-2-ylidene; L2 represents alkylene, cycloalkylene, or cycloalkylidene; R6 represents hydrogen or alkyl (optionally substituted by alkoxycarbonyl or hydroxy); Q represents a C1-9 alkylene chain (optionally substituted by alkyl or hydroxy); and Y represents an optionally substituted imidazole ring; which are antiinflammatory, antiallergic and immunodulant agents. Compositions containing these compounds and processes to make them are also disclosed.