Patent ID: 7417152

Claim:
A compound of formula I or II: wherein R 1 is phenyl optionally substituted with 1-4 groups independently selected from the group consisting of hydroxy, nitro, acyl, acyloxy, alkoxy, phenoxy, benzyloxy, phenyl, alkenyl, halogen, alkyl, and alkyl substituted with hydroxy or halogen; R 2 is selected from the group consisting of hydrogen and alkyl; R 3 is selected from the group consisting of hydrogen and alkyl; R 4 is selected from the group consisting of heterocyclic and alkyl substituted with arylene-heterocyclic, arylene-heteroaryl, heterocyclic or heteroaryl, wherein each of the heterocyclic or heteroaryl groups of R 4 may be optionally substituted with alkyl optionally substituted with alkyl or benzyl, further wherein each of the heterocyclic and heteroaryl groups are 5-membered rings, R 5 is selected from the group consisting of hydrogen or alkyl; or R 4 and R 5 , together with the nitrogen atom pendent thereto are joined to form a heterocyclic or a heteroaryl wherein each of the heterocyclic and heteroaryl groups are 5-membered rings and may be further substituted with —CH 2 -heterocyclic, X is selected from the group consisting of hydrogen, halogen, and alkyl; or a pharmaceutically acceptable salt or stereoisomer thereof.