(E)-(4R,5R)-5-Benzyloxy-6-[1,3]dithian-2-yl-4-methanesulfonyloxy-hex-2-enoic acid ethyl ester

Methanesulfonic acid (1S,2R)-2-benzyloxy-3-[1,3]dithian-2-yl-1-formyl-propyl ester