1-O-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl) 5-O-methyl 2-ethyl-4-[2-[4-[(2,3,4,5,6-pentafluorophenyl)sulfamoyl]phenyl]propyl]-2-[3,3,3-trifluoro-2-(trifluoromethyl)propyl]pentanedioate;1-O-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl) 5-O-methyl 2-ethyl-4-[2-[4-[(2,4,6-trichlorophenyl)sulfamoyl]phenyl]propyl]-2-[3,3,3-trifluoro-2-(trifluoromethyl)propyl]pentanedioate;1-O-[2-[2-(3-methoxy-3-oxopropyl)sulfanylacetyl]oxyethyl] 5-O-methyl 2-ethyl-2-methyl-4-[2-methyl-3-oxo-3-(4-sulfamoylanilino)propyl]pentanedioate;1-O-[2-(3-methoxy-3-oxopropyl)sulfanylethynyl] 5-O-methyl 2-ethyl-2-methyl-4-[2-[4-[(2,4,6-trichlorophenyl)sulfamoyl]phenyl]propyl]pentanedioate;1-O-methyl 5-O-[(4-methylphenyl)methyl] 2-ethyl-4-[2-[4-[(2-methylphenyl)sulfamoyl]phenyl]propyl]pentanedioate