4-O-tert-butyl(diphenyl)silyl-1,2-O-isopropylidene-D-erythro-S-phenyl monothiohemiacetal

[(R)-2-[1-((2S,3R,4S,5R,6S)-4,5-Bis-benzyloxy-2-benzyloxymethyl-6-methoxy-tetrahydro-pyran-3-ylmethyl)-vinyloxy]-2-((R)-2,2-dimethyl-5-phenylsulfanyl-[1,3]dioxolan-4-yl)-ethoxy]-tert-butyl-diphenyl-silane

(1R)-2-((tert-butyldiphenylsilyl)oxy)-1-((4R)-2,2-dimethyl-5-(phenylthio)-1,3-dioxolan-4-yl)ethyl 2-((1R,2R,3S,4R,5S,6S)-2,3,4,5,6-pentakis(benzyloxy)cyclohexyl)acetate