Acetic acid (2R,3R,4S,5R,6R)-2-acetoxy-6-acetoxymethyl-3-acetylamino-5-fluoro-tetrahydro-pyran-4-yl ester

benzyl 2-acetamido-3,4-anhydro-2-deoxy-α-D-allopyranoside

benzyl 2-acetamido-2,4-dideoxy-4-iodo-6-O-trityl-α-D-glucopyranoside

benzyl 2-acetamido-3-O-acetyl-2,4-dideoxy-4-fluoro-6-O-trityl-α-D-gulopyranoside