methyl 5-acetamido-2,6-anhydro-3,5-dideoxy-D-manno-non-2-en-4-ulosonate

methyl 5-acetamido-2,6-anhydro-3,5-dideoxy-8,9-O-isopropylidene-4-O-[3-(diethylamino)-3-(4-methylbenzenesulfonylimino)propoxy]-D-glycero-D-galacto-non-2-enonate

5-acetamido-2,6-anhydro-3,5-dideoxy-4-O-[3-(phenylamino)-3-(methanesulfonylimino)propoxy]-D-glycero-D-galacto-non-2-enonic acid