Patent ID: 6750223
Filing Date: 2004-06-15
Classification: C07D

Abstract:
A compound of formula (I) or a pharmaceutically acceptable salt thereof: whereinY represents S O or NH; R1 represents a group selected from the group consisting of: whereinâ€ƒR4 represents: H or wherein X represents O, S, NH or NOR, R in NOR being H or a C1-C4 alkyl group, and R6 represents H or a C1-C4 alkyl group; â€ƒR5 is selected from the group consisting of H, wherein X represents O, S, NH or NOR, R in NOR being H or a C1-C4 alkyl group, and R6 represents H or a C1-C4 alkyl group; with the proviso that one of R4 and R5 is H; R2 represents: H, halogen, a C1-C4 alkyl group, hydroxyl, a C1-C4 alkoxy group, nitro or amino; and R3 represents: H, halogen, a C1-C4 alkyl group, hydroxyl, a C1-C4 alkoxy group, nitro or amino.