(E)-ethyl 3-((4S,5S)-5-((benzyloxy)methyl)-2,2-dimethyl-1,3-dioxolan-4-yl)acrylate

(3E,5R,6S,7S)-8-[(tert-butyldimethylsilyl)oxy]-6,7-(isopropylidenedioxy)-5-[(2,2,2-trichloroethoxycarbonyl)amino]-oct-3-ene