Patent ID: 8637670

Claim:
A compound of formula (I), wherein R 1 is phenyl substituted with —C(CH 3 ) 2 CN; R 2 is alkyl, alkenyl, aryl, heteroaryl, heterocyclyl, or —NHR 8 ; R 3 , R 4 , R 5 and R 7 are hydrogen; R 6 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, halogen, acyl, hydroxy, amino, cyano, nitro, thiol, —COOH, —CONH 2 , —OR 8 , —NHR 8 , —SR 8 or —B(OH) 2 ; R 8 at each occurrence is independently selected from alkyl, alkenyl, aralkyl or aryl; and Y is —C(O), —C(S) or —S(O) 2 ; wherein, alkyl is unsubstituted or substituted with one or more of the same or different groups selected from halogen, nitro, cyano, amino, hydroxy, alkoxy, acyl, —CONH 2 , or aryl; alkenyl is unsubstituted or substituted with one or more of the same or different groups selected from alkyl, halogen, hydroxy, cyano, nitro, acyl, haloalkyl, alkoxy or aryl; alkynyl is unsubstituted or substituted with one or more of the same or different groups selected from alkyl, halogen, hydroxy, cyano, nitro, acyl, haloalkyl, alkoxy or aryl; cycloalkyl is unsubstituted or substituted with one or more of the same or different groups selected from halogen, nitro, cyano, amino, hydroxy, alkyl, alkoxy, haloalkyl, acyl, —CONH 2 or aryl; aryl is unsubstituted or substituted with one or more of the same or different groups selected from cyano, nitro, halogen, alkyl, haloalkyl, hydroxy, alkoxy, haloalkoxy, acyl or aryl; heteroaryl is unsubstituted or substituted with one or more of the same or different groups selected from cyano, nitro, alkyl, haloalkyl, alkoxy, hydroxy, halogen, amino, —CONH 2 , carboxy, acyl or aryl; heterocyclyl is unsubstituted or substituted with one or more of the same or different groups selected from cyano, nitro, halogen, alkyl, haloalkyl, hydroxy, alkoxy, amino, —CONH 2 , carboxy, acyl or aryl; or a stereoisomer, a tautomer, a pharmaceutically acceptable salt or a pharmaceutically acceptable solvate thereof.