Patent ID: 7943611

Claim:
An imidazo[1,2-a]pyridin-3-yl-acetic acid hydrazide compound of formula (I): wherein R 1 is selected from the group consisting of hydrogen, linear or branched alkyl(C 1 -C 6 ), alkenyl(C 2 -C 6 ), alkynyl(C 2 -C 6 ) and cycloalkyl(C 3 -C 6 ); R 2 and R 3 are independently selected from the group consisting of hydrogen, linear or branched alkyl(C 1 -C 6 ), alkenyl(C 2 -C 6 ), alkynyl(C 2 -C 6 ), cycloalkyl(C 3 -C 6 ) and R 4 CO, or both R 2 and R 3 can form, together with the nitrogen atom to which they are attached, a 5-6 membered heterocyclic ring optionally substituted, or a NCR 5 R 6 group; R 4 is selected from the group consisting of linear or branched alkyl(C 1 -C 6 ), cycloalkyl(C 3 -C 6 ), aryl optionally substituted and heteroaryl optionally substituted; R 5 is selected from the group consisting of hydrogen, linear or branched alkyl(C 1 -C 6 ), cycloalkyl(C 3 -C 6 ) and aryl optionally substituted; R 6 is selected from the group consisting of linear or branched alkyl(C 1 -C 6 ), cycloalkyl(C 3 -C 6 ) and aryl optionally substituted; or both R 5 and R 6 can form, together with the carbon atom to which they are attached, a 5-6 membered ring optionally substituted; and pharmaceutically acceptable salts, tautomers, and stereoisomers thereof.