Patent ID: 7452909

Claim:
A compound of formula I wherein R 1 is selected from halogen, lower alkyl, lower alkoxy, CF 3 and cyano; R 2 is selected from the group consisting of: pyridyl; pyridyl substituted by lower alkyl; and pyridyl substituted by halogen; R 3 is selected from hydrogen, C(O)H and CH 2 R 5 , wherein R 5 is selected from hydrogen, OH, C 1 -C 6 -alkyl and C 3 -C 12 -cycloalkyl; R 4 is lower alkyl or C 3 -C 12 -cycloalkyl; X is N; Y is —(CHR) 1,2 or 3 ; and R is hydrogen or lower alkyl; or a pharmaceutically acceptable salt thereof.