S-phenyl 2,6-di-O-benzyl-3,4-O-(butane-2',3'-diyl)-1-thia-α-D-mannopyranoside

phenyl 6-azido-6-deoxy-3,4-O-(2',3'-dimethoxybutane-2',3'-diyl)-1-thio-α-D-mannopyranoside

phenyl 6-azido-6-deoxy-3,4-O-(2',3'-dimethoxybutane-2',3'-diyl)-2-O-methylsulfonyl-1-thio-α-D-mannopyranoside