乙酸酐 、
1-chloro-1-deoxy-β-D-fructofuranosyl 4,6-dichloro-4,6-dideoxy-α-D-galactopyranoside 在
吡啶 作用下,
以52.5%的产率得到Acetic acid (2R,3S,4R,5R)-4-acetoxy-5-acetoxymethyl-2-chloromethyl-2-((2R,3R,4R,5R,6R)-3,4-diacetoxy-5-chloro-6-chloromethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-furan-3-yl ester