(1R,2R,3S,4S,5R)-2,3-bis(benzyloxy)-4-(((E)-prop-1-en-1-yl)oxy)-6,8-dioxabicyclo[3.2.1]octane

1,6-anhydro-2,3-O-endo-benzylidene-β-D-mannopyranose

1,6-anhydro-4-O-benzyl-2,3-O-endo-benzylidene-β-D-mannopyranose

1,6:2,3-di-anhydro-4-O-benzyl-β-D-mannopyranose