phenyl 2,4,6-tri-O-acetyl-3-O-benzyl-1-thio-α-L-idopyranoside

1,2-di-O-acetyl-3-O-benzyl-4,6-(R)-O-benzylidene-L-idopyranose

phenyl 3-O-benzyl-4,6-O-benzylidene-1-thio-α-L-idopyranoside