Patent ID: 7091222

Claim:
A compound of formula I wherein R 1 is selected from halogen, lower alkyl, lower alkoxy, CF 3 , CF 2 H, OCF 3 , OCF 2 H, and cyano; R 2 is lower alkyl or cycloalkyl; R 3 is selected from lower alkyl, cycloalkyl, —(CH 2 ) n -cycloalkyl, —(CH 2 ) n —CN, —(CH 2 ) n —O-lower alkyl, lower-alkyleneoxy aryl, and —R 5 —F n wherein R 5 is lower alkyl or lower alkenyl; and n is 1, 2 or 3; and R 4 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; or a pharmaceutically acceptable salt thereof.