Ethyl (E)-4-[2,2-dimethyl-5-(toluene-4-sulfonyl)tetrahydro[1,3]dioxolo[4,5-c]pyrrol-4-yl]-4-triisopropylsilyloxy-2-butenoate

methyl 3-acetamido-2,4,6-tri-O-acetyl-3-deoxy-α-D-mannopyranoside

methyl 3-acetamido-4,6-O-benzylidene-3-deoxy-2-O-mesyl-α-D-glucopyranoside

3-acetamido-2,4,5-tri-O-benzyl-3-deoxy-6-O-tosyl-D-mannose diethyl dithioacetal