(2'S,3'S) ethyl 2-O-benzyl-6-O-t-butyldiphenylsilyl-3,4-di-O-(2',3'-dimethoxybutane-2',3'-diyl)-1-thio-β-D-glucopyranoside

[(2S,3S,4aR,5R,7R,8R,8aS)-8-Benzyloxy-7-((3aR,5R,6R,6aR)-5-hydroxymethyl-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yloxy)-2,3-dimethoxy-2,3-dimethyl-hexahydro-pyrano[3,4-b][1,4]dioxin-5-yl]-methanol