Patent ID: 7691866

Claim:
A compound of the formula (IV): wherein, Y is O or S; A 1 is substituted or unsubstituted alkyl, cycloalkyl, heterocycloalkyl, aryl, polycyclic aryl, polycyclic arylalkyl, heteroaryl, biaryl, heteroarylaryl, heteroarylheteroaryl, cycloalkylalkyl, cycloalkylaryl, heterocycloalkyl, heterocycloalkylalkyl, heterocycloaryl, arylalkyl, heteroarylalkyl, biarylalkyl, or heteroarylarylalkyl; R 2 is NR 6 R 7 or hydroxyl; R 3 and R 3′ are independently selected from hydrogen, halogen, loweralkyl, or loweralkoxy; R 4 is hydrogen, hydroxyl or substituted or unsubstituted alkyl; and R 6 and R 7 are independently selected from hydrogen, and substituted or unsubstituted alkyl, alkoxy, alkoxyalkyl, aminoalkyl, amidoalkyl, acyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, alkyloxyalkylheterocyclo, and heteroarylalkyl; or R 6 and R 7 are taken together to form substituted or unsubstituted heterocyclo or heteroaryl; or a stereoisomer, tautomer, prodrug or pharmaceutically acceptable salt thereof.