(S)-2-((3aR,7R,7aR)-7-Benzyloxy-2,2-dimethyl-4-oxo-tetrahydro-[1,3]dioxolo[4,5-c]pyridin-5-yl)-4-methyl-pentanoic acid tert-butyl ester

(E)-3-[(4S,5R)-5-((S)-1-Hydroxy-2-iodo-ethyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-acrylic acid tert-butyl ester