methyl 3,4-di-O-acetyl-2,6-dideoxy-α-D-arabino-hexopyranoside

methyl 4-O-benzoyl-3-O-tert-butyldimethylsilyl-2,6-dideoxy-2-iodo-α-D-manno-hexopyranoside

methyl 4-O-benzoyl-2,6-dideoxy-3-O-(p-tolylsulfonyl)-α-D-arabino-hexopyranoside