(E)-3-[(1S,2S)-2-Benzyloxy-4-[(4S,5S)-2,2-dimethyl-5-(3-oxo-propyl)-[1,3]dioxolan-4-yl]-1-(3-oxo-propyl)-butoxy]-acrylic acid ethyl ester

(3S,4S)-4-Benzyloxy-1-[1,3]dithian-2-yl-6-[(4S,5S)-5-(2-[1,3]dithian-2-yl-ethyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-hexan-3-ol