Patent ID: 7786147

Claim:
A compound according to the chemical structure: wherein each R 1 is a R 2 is H, a C 1 to C 12 straight, branch-chained or cyclic saturated or unsaturated hydrocarbon, a (CH 2 ) k OR 5 group or a group R 1 as described above; R 3 is a H, a C 1 to C 12 alkyl group, a C 2 to C 12 alkenyl, group or a (CH 2 ) k OR 5 group; R 5 is H, a C 1 to C 12 alkyl, a C 2 to C 12 alkenyl group or carboxylic acid, a C 2 to C 12 acyl or alkyl ester group or a C 3 to C 12 alkylene ester group; n is 0 to 12; and k is 1 to 12; or a pharmaceutically acceptable salt thereof.