Patent ID: 7887784

Claim:
A compound having the following structure: wherein, * independently denotes an R or S configuration or a racemic mixture; and wherein R 1 is selected from the group consisting of H, methyl, alkyl, and halo-alkyl; and wherein R 2 is selected from the group consisting of straight chain alkyl, branched alkyl, O-alkyl, S-alkyl, aryl-alkyl-, halo-substituted-alkyl-, halo-substituted-alkenyl-, substituted-alkenyl-, alkyl-oxy-alkyl ether-, halo-substituted-alkyl-oxy-alkyl ether-, aryl-oxy-alkyl ether-, O-aryl, S-aryl, amino, amino-alkyl, and amino-aryl; and wherein R 3 is selected from the group consisting of H, halogen, straight chain alkyl, branched alkyl, O-alkyl, S-alkyl, aryl-alkyl-, halo-substituted-alkyl, halo-substituted-alkenyl-, substituted-alkenyl-, alkyl-oxy-alkyl ether-, halo-substituted-alkyl-oxy-alkyl ether-, aryl-oxy-alkyl ether-, O-aryl, S-aryl, amino, amino-alkyl, and amino-aryl; and wherein R 4 , R 5 , R 6 , and R 7 are independently selected from the group consisting of H, halogen, straight chain alkyl, branched alkyl, O-alkyl, halo-substituted-alkyl-, halo-substituted-alkenyl-, substituted-alkenyl-, carboxyl acid, or carboxylic ester, nitro, amino, and substituted-amino.