Patent ID: 8440679

Claim:
A compound of formula (I) having the structure wherein R1 is H, aryl, substituted aryl, alkyl, substituted alkyl, heteroaryl, substituted heteroaryl, heterocyclyl, substituted heterocyclyl, heterocyclylalkyl or substituted heterocyclylalkyl; X is CH 2 or C═O; R2 is H, (C 1 -C 6 )alkyl, halogen, CF 3 , or —O—(C 1 -C 6 )alkyl; Y is —NHCO—, —CONH—, —NHSO 2 − , —NH—, —NCH 3 —CO—, —NHCH 2 —, O, —NHCONH— or —NHCOCH 2 —; R3 is alkyl, substituted alkyl, aryl, or substituted aryl, heteroaryl, substituted heteroaryl, cycloalkyl, substituted cycloalkyl or heterocycloalkyl; or a pharmaceutically acceptable salt thereof.