Aryloxy and arylalkyleneoxy substituted imidazoquinolines

A compound of the formula (II):

• wherein:
• R3 is —Z—Ar,
• Z is selected from the group consisting of a bond and alkylene;
• Ar is phenyl which is unsubstituted or substituted by one or more substituents independently selected from the group consisting of alkyl, alkoxy, nitro, cyano, halogen, amino, alkylamino, dialkylamino, trifluoromethyl, and trifluoromethoxy;
• R is selected from the group consisting of alkyl, alkoxy, hydroxy, halogen, and trifluoromethyl;
• n is 0 or 1;
• R1 is —R4,
• R2 is selected from the group consisting of hydrogen, alkyl, and alkoxyalkylenyl;
• R4 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, aryl, arylalkylenyl, aryloxyalkylenyl, alkylarylenyl, heteroaryl, alkylheteroarylenyl, and heterocyclyl wherein the alkyl, alkenyl, alkynyl, aryl, arylalkylenyl, aryloxyalkylenyl, alkylarylenyl, heteroaryl, heteroarylalkylenyl, and heterocyclyl groups can be unsubstituted or substituted by one or more substituents independently selected from the group consisting of acetyl, alkyl, alkoxy, alkylthio, alkylsulfonyl, alkanoyloxy, alkoxycarbonyl, hydroxyalkyl, haloalkyl, haloalkoxy, halogen, nitro, hydroxy, mercapto, cyano, formyl, aryl, aryloxy, arylthio, arylsulfonyl, arylalkyleneoxy, aroylamino, heteroaryl, heteroaryloxy, heteroarylalkyleneoxy, heterocyclyl, heterocyclylalkylenyl, amino, alkylamino, dialkylamino, (dialkylamino)alkyleneoxy, aminosulfonyl, and in the case of alkyl, alkenyl, alkynyl, and heterocyclyl, oxo;
• or a pharmaceutically acceptable salt thereof.