Patent ID: 7786311

Claim:
A compound of the formula (VII) wherein R 1 is selected from the group consisting of aryl, aralkyl, heteroaryl, heteroaryl-alkyl, heterocycloalkyl, heterocycloalkyl-alkyl, cycloalkyl and cycloalkyl-alkyl; wherein the aryl, aralkyl, heteroaryl, heterocycloalkyl, heterocycloalkyl-alkyl or cycloalkyl group is optionally substituted with one or more substituents independently selected from halogen, hydroxy, alkyl, alkoxy; halogenated alkyl, halogenated alkoxy, amino, alkylamino or di(alkyl)amino; R 2 is selected from the group consisting of aryl, aralkyl, heteroaryl, heterocycloalkyl and cycloalkyl-alkyl; wherein the aryl, aralkyl, heteroaryl, heterocycloalkyl or cycloalkyl group is optionally substituted with one or more substituents independently selected from halogen, hydroxy, alkyl, alkoxy; halogenated alkyl, halogenated alkoxy, amino, alkylamino or di(alkyl)amino; R 4 is selected from the group consisting of aryl, aralkyl, heteroaryl, heterocycloalkyl, and cycloalkyl-alkyl; wherein the aryl, aralkyl, heteroaryl, heterocycloalkyl or cycloalkyl group is optionally substituted with one or more substituents independently selected from halogen, hydroxy, alkyl, alkoxy; halogenated alkyl, halogenated alkoxy, amino, alkylamino or di(alkyl)amino.