Methyl 2-azido-2-deoxy-4,6-O-(phenylmethylene)-α-D-mannopyranoside

methyl 3-O-acetyl-2-azido-4,6-O-benzylidene-2-deoxy-α-D-mannopyranoside

acetyl 3,4,6-tri-O-acetyl-α-D-glucopyranose