Patent ID: 8227616

Claim:
A compound having the formula: wherein is selected from the group consisting of: or a pharmaceutically acceptable salt thereof; wherein each R 1 is independently selected from the group consisting of a hydrogen, and an unsubstituted C 1 -C 6 alkyl group; wherein R 2 is selected from the group consisting of —H, —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 CH 3 , —CH 2 CH 2 CH 2 CH 3 , —CH 2 CH 2 CH 2 CH 2 CH 3 , —OH, —OCH 3 , —OCH 2 CH 3 , —OCH 2 CH 2 CH 3 , —OCH 2 CH 2 CH 2 CH 3 and —OCH 2 CH 2 CH 2 CH 2 CH 3 ; wherein R 6 is selected from the group consisting of —H, —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 CH 3 , —CH 2 CH 2 CH 2 CH 3 , —CH 2 CH 2 CH 2 CH 2 CH 3 , —OH, —OCH 3 , —OCH 2 CH 3 , —OCH 2 CH 2 CH 3 , —OCH 2 CH 2 CH 2 CH 3 and —OCH 2 CH 2 CH 2 CH 2 CH 3 ; and wherein at least one of R 2 and R 6 is —OH, —OCH 3 , —OCH 2 CH 3 , —OCH 2 CH 2 CH 3 , —OCH 2 CH 2 CH 2 CH 3 or —OCH 2 CH 2 CH 2 CH 2 CH 3 ; wherein each R 3 is independently selected from the group consisting of a hydrogen, a halogen, an unsubstituted amine group, an unsubstituted C 1 -C 8 alkyl group, an unsubstituted C 1 -C 8 alkoxyl group, a C 1 -C 3 haloalkyl group, a hydroxyl group, a —CN group, an azide group, and a —NO 2 group; wherein R 4 is selected from the group consisting of —F, —Cl, —Br, and —I; wherein R 5 is selected from the group consisting of —CF 3 , —CF 2 CF 3 , —CF 2 CF 2 CF 3 , —CF 2 CF 2 CF 2 CF 3 , and —CF 2 CF 2 CF 2 CF 2 CF 2 CF 3 ; wherein R 7 is an unsubstituted C 1 -C 8 alkyl group.