Patent ID: 7223866

Claim:
A compound of the formula (I) wherein R 1 is cycloalkyl, heterocyclyl or an aryl radical of the formula in which R 4 is cycloalkyl, aryl or heterocyclyl; or R 4 is optionally substituted alkyl, alkoxy, hydroxy, halogen or trifluoromethyl provided that both R 5 and R 6 are not hydrogen; R 5 is hydrogen, halogen, cyano, alkoxy or trifluoromethyl; or R 4 and R 5 combined together with the carbon atoms to which they are attached form an optionally substituted aromatic or heteroaromatic 5- or 6-membered ring provided that R 4 and R 5 are attached to carbon atoms adjacent to each other; or R 4 and R 5 combined are alkylene which taken together with the carbon atoms to which they are attached form a 4- to 7-membered ring provided that R 4 and R 5 are attached to carbon atoms adjacent to each other; R 6 is hydrogen, halogen, cyano, nitro, trifluoromethyl, optionally substituted lower alkyl, optionally substituted amino, alkoxy, carboxy, alkoxycarbonyl, sulfonyl or carbamoyl; R 2 and R 3 are, independently, hydrogen, trifluoromethyl or alkoxy; or R 2 and R 3 combined together with the carbon atoms to which they are attached form an optionally substituted aromatic or heteroaromatic 5- or 6-membered ring; or R 2 and R 3 combined are alkylene which taken together with the carbon atoms to which they are attached form a 4- to 7-membered ring; or a pharmaceutically acceptable salt thereof.