| abstract |
A compound of the formula (I), or pharmaceutical acceptable salts thereof wherein X is NR1, s(o)g, or O; R1 is H, C1-6 alky1 optionally substituted with one or more OH, CN, or halo, or R1 is -(CH2)h-ary1, -COR1-1, -COOR1-2,-CO-(CH2)h-COR1-1, C1-6 alky1 sulfony1, -SO2-(CH2)h-ary1, or -(CO)I-Het, R2 is H, C1-6 alky1, -(CH2)h-ary1, or halo; R3 and R4 are the same or different and are H or halo; R5 is H,C1-12 alky1 optionally substituted with one or more halo, C3-12 cycloalky1, C1-6alkoxy. The compounds are useful antimicrobial agents. |