4-(4-chlorophenoxy)-N-[(6R)-1-hydroxy-7-oxo-5,6-dihydro-2H-azepin-6-yl]-N-methylbenzenesulfonamide;1-[[4-[4-(1,1-difluoroethoxy)phenoxy]phenyl]sulfonylmethyl]-3-hydroxypyridin-2-one;3-hydroxy-1-[[4-(4-methylphenoxy)phenyl]sulfonylmethyl]pyridin-2-one;N-[(6R)-1-hydroxy-7-oxo-5,6-dihydro-2H-azepin-6-yl]-4-(4-methylphenyl)benzenesulfonamide;N-(1-hydroxy-2-oxopyridin-3-yl)-4-(4-methylphenoxy)-N-(2-morpholin-4-yl-2-oxoethyl)benzenesulfonamide