Patent ID: 8809384

Claim:
A compound of formula (I), wherein R 1 is selected from the group consisting of hydrogen, alkyl and cycloalkyl; R 2 is selected from the group consisting of hydrogen, alkyl and cycloalkyl; R 3 is selected from the group consisting of hydrogen, alkyl and cycloalkyl; R 4 is selected from the group consisting of hydrogen, alkyl and cycloalkyl; or R 3 and R 4 together with the carbon they are attached to form a cycloalkyl; R 5 is substituted phenyl or substituted pyridinyl, wherein substituted phenyl and substituted pyridinyl are substituted with one to three substituents independently selected from the group consisting of haloalkyl, hydroxyhaloalkyl, alkoxy and haloalkoxy; A is selected from the group consisting of —C(R 6 R 7 )—, —NR 8 , —O— and —S—; R 6 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, hydroxy, alkoxy and cycloalkoxy; R 7 is selected from the group consisting of hydrogen, alkyl and cycloalkyl; and R 8 is selected from the group consisting of hydrogen, alkyl and cycloalkyl; or a pharmaceutically acceptable salt thereof.