1-((2R,4aR,6R,7R,8R,8aS)-8-Benzyloxy-6-hydroxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl)-3,4-dimethyl-pyrrole-2,5-dione

3-O-acetyl-4,6-O-benzylidene-2-deoxy-2-dimethylmaleimido-β-D-glucopyranose