| abstract |
A compound according to formula Ia: ** Formula ** in which R1 is heteroaryl unsubstituted or substituted with one or more groups R4; R2 is substituted or unsubstituted C1-C6 alkyl or cycloalkyl; R3 is substituted or unsubstituted halo, C1-C6 alkyl or cycloalkyl; each R4 is independently selected from the group consisting of H, alkyl, acyl, acylamino, alkylamino, alkylthio, alkoxy, alkoxycarbonyl, alkylarylamino, arylalkyloxy, amino, aryl, arylalkyl, sulfo, substituted sulfo, substituted sulfonyl, substituted sulfinyl, substituted sulfanyl , azido, carbamoyl, carboxyl, cyano, cycloalkyl, cycloheteroalkyl, dialkylamino, halo, heteroaryloxy, heteroaryl, heteroalkyl, hydroxy, nitro and thiol; or a pharmaceutically acceptable salt or solvate thereof. |