6,8-Dimethoxy-2-phenyl-hexahydro-2H-pyrano[3,2-d][1,3]dioxin-7-ol

methyl 4,6-o-benzylidene-3-o-methyl-α-d-mannopyranoside ; 4,6-o-benzylidene-1,3-di-o-methyl-α-d-mannopyranoside ; 4,6-o-benzylidene-1,3-di-o-methyl-a-d-mannopyranoside ; methyl 3-o-methyl-4,6-o-(phenylmethylene)-α-d-mannopyranoside ; methyl 4,6-o-benzylidene-3-o-methyl-a-d-mannopyranoside ; methyl 3-o-methyl-4,6-o-(phenylmethylene)-a-d-mannopyranoside