Imidazole derivatives of the formula ##STR1## wherein Ar.sub.1 and Ar.sub.2 are each phenyl; phenyl substituted by halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or C.sub.2-6 dialkylamino; pyridyl; furyl; or thienyl; with the proviso that Ar.sub.1 and Ar.sub.2 are not both unsubstituted phenyl; R.sub.1 is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkyl substituted by hydroxy, C.sub.1-4 alkoxy or C.sub.1-6 alkanoyloxy; n is 0, 1 or 2; and Z is a C.sub.2-6 -alkyl or -alkenyl residue substituted by one or two of hydroxy, C.sub.1-4 alkoxy, C.sub.2-8 alkylenedioxy, C.sub.1-6 alkanoyloxy or benzoyloxy, or by one alkoxycarbonyl group; and the salts thereof with physiologically acceptable acids, possess valuable pharmacological properties.
                            化合物的式子为 ##STR1## 其中Ar.sub.1和Ar.sub.2均为苯基; 被卤素,C.sub.1-4烷基,C.sub.1-4烷氧基或C.sub.2-6双烷基
氨基取代的苯基; 
吡啶基; 
呋喃基; 或
噻吩基; 但须注意Ar.sub.1和Ar.sub.2不能都是未取代的苯基; R.sub.1为氢,C.sub.1-4烷基或C.sub.1-4烷基取代的羟基,C.sub.1-4烷氧基或C.sub.1-6烷酰氧基; n为0, 1或2; Z为C.sub.2-6 -烷基或-烯基残基,被一个或两个羟基,C.sub.1-4烷氧基,C.sub.2-8烷二氧基,C.sub.1-6烷酰氧基或苯甲酰氧基取代,或被一个羧甲氧基取代; 以及与生理上可接受的酸盐具有有价值的药理特性。