Patent ID: 7781594

Claim:
A compound of formula (I): wherein: R 1 is selected from substituted or unsubstituted C 1 -C 6 alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl and substituted or unsubstituted heterocyclyl; R 2 is selected from C 1 -C 6 alkyl, optionally substituted by cycloalkyl, aryl, 3-membered heterocyclyl, halo, cyano, amino or nitro; substituted or unsubstituted cycloalkyl; and N(R′R″) wherein R′ and R″ are independently hydrogen or C 1 -C 6 alkyl; and R 3 is a C 1-6 alkyl radical, or a pharmaceutically acceptable salt and/or prodrug thereof.