Patent ID: 7214804

Claim:
A compound according to Formula I: wherein, R 1 at each occurrence is independently selected from the group consisting of hydrogen, alkyl, aryl, hydroxy, oxyalkyl, oxyperfluoroalkyl halo, amino, carboaminoalkyl, aminocarboalkyl and carboaminocarboalkyl, wherein each alkyl, aryl, oxyalkyl, amino, carboaminoalkyl, aminocarboalkyl and carboaminocarboalkyl, may optionally be substituted with one or more alkyl, aryl, hydroxy, oxyalkyl, oxyperfluroalkyl, halo, amino, carboaminoalkyl, aminoarboalkyl or carboaminocarboalkyl; R 2 is selected from the group consisting of H and alkyl; R 3 at each occurrence is independently selected from the group consisting of hydrogen, alkyl and halo; R 4 is selected from the group consisting of H and alkyl; X is (CH 2 ) n ; and n is 0 or 1, wherein Formula I is inclusive of all prodrugs, prodrug esters, stereoisomers and pharmaceutically acceptable salts of Formula I.