methyl 4-O-benzoyl-6-bromo-3,6-dideoxy-α-D-arabino-hexopyranoside

methyl 2-O-benzoyl-3,6-dideoxy-4-O-methoxymethyl-α-D-threo-hex-5-enopyranoside

methyl 3,6-dideoxy-2-O-[4'-methyl-3',5'-hexadienoyl]-4-O-methoxymethyl-α-D-threo-hex-5-enopyranoside