Patent ID: 8222259

Claim:
A compound represented by the structural Formula I: wherein: R 1 represents aryl or heteroaryl; and R 2 represents hydrogen; or R 1 and R 2 together with the carbon atoms to which they are bonded form a further heterocyclic ring of the formula: or a carbocyclic ring system of the formula: R 3 represents aryl, cycloalkylalkyl, aralkyl or heteroarylalkyl; Z represents alkyl, alkenyl, haloalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, aralkyl or CH 2 CH 2 R 4 ; R 4 represents a member selected from the group consisting of: and R 5 represents alkyl, alkoxycarbonyl, alkylsulfonyl, aryl or heteroatyl; or a pharmaceutically acceptable salt, ester or prodrug of said compound of Formula I.