Patent ID: 7674811

Claim:
A compound having the structure of Formula I: or a pharmaceutically acceptable salt, pharmaceutically acceptable, stereoisomer, tautomer, racemate, or N-oxide thereof, wherein G is O or S, Z is —(CH 2 ) n2 —X— or —X—(CH 2 ) n2 —, X is —NR 1 , —O— or —S—, n 1 is 0, 1 or 2, n 2 is 0, 1 or 2 R 1 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, (cycloalkyl)alkyl, aryl, aralkyl, heteroaryl, heterocyclyl, (heteroaryl)alkyl, or (heterocyclyl)alkyl, R 2 is —CN, —COR 3 , or a 5-membered heteroaryl or heterocyclyl, and R 3 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, (cycloalkyl)alkyl, aryl, aralkyl, heteroaryl, heterocyclyl, (heteroaryl)alkyl, (heterocyclyl)alkyl, —OR 1 , —SR 1 or —N(R 1 ) 2 .