Acetic acid (3aS,4R,6R,7R,7aS)-6-((2R,3R,4R,5R,6R)-3-acetoxy-2-acetoxymethyl-5-azido-6-bromo-tetrahydro-pyran-4-yloxy)-4-acetoxymethyl-2-oxo-tetrahydro-[1,3]dioxolo[4,5-c]pyran-7-yl ester

benzyl N-(((9H-fluoren-9-yl)methoxy)carbonyl)-O-((2S,3R,4R,5R,6R)-3-acetamido-5-acetoxy-4-(((3aS,4R,6R,7R,7aS)-7-acetoxy-4-(acetoxymethyl)-2-oxotetrahydro-4H-[1,3]dioxolo[4,5-c]pyran-6-yl)oxy)-6-(acetoxymethyl)tetrahydro-2H-pyran-2-yl)-L-threoninate