(2R,3S,4S,5R,6S)-2-(tert-Butyl-dimethyl-silanyloxymethyl)-6-(9H-xanthen-9-ylsulfanyl)-tetrahydro-pyran-3,4,5-triol

diosgenyl 2,3-di-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranoside