methyl 2-benzyloxycarbonylamino-2,3,4,7-tetradeoxy-6-O-(methylsulfonyl)-α-D-ribo-heptopyranoside

methyl 2-amino-2,3,4-trideoxy-6-O-trityl-α-D-glucopyranoside

methyl 2-benzyloxycarbonylamino-2,3,4-trideoxy-6-O-trityl-α-D-erythro-hex-3-enopyranoside

methyl 6-azido-2,3,4,6,7-pentadeoxy-2-phthalimido-α-D-ribo-heptopyranoside

methyl 2,3,4-trideoxy-2-phthalimido-6-O-trityl-α-D-glucopyranoside