Patent ID: 7544675

Claim:
A compound having the formula I, or a pharmaceutically acceptable salt thereof, wherein Y is —NH—R 2 or a group of formula R 1 is cycloalkyl or non-substituted alkyl, R 2 is cycloalkyl, R 3 is hydrogen, alkyl, halogen, hydroxy, alkoxy or amino, R a is hydrogen, alkyl, alkenyl, alkynyl, halogen, hydroxy, alkoxy, amino, alkylamino, alkylsulfonyloxy, cyano, carboxy, ester or amido, R b is hydrogen, alkyl or halogen, or R a R b is carbonyl, R 4 is hydrogen or alkyl, R 5 is cycloalkyl, arylalkyl or heterocycle-alkyl, or NR 4 R 5 is a heterocycle, which may be substituted, containing only one heteroatom which is a nitrogen atom or containing two heteroatoms wherein one is a nitrogen atom and the other is a non-oxidized sulfur atom, with the proviso that when Y is a group of formula R 1 is a cycloalkyl.