1-(2',3',4',5'-Tetra-O-acetyl-β-D-galactopyranosyl)ureidomethylenemalononitrile 在
三乙胺 作用下,
以
乙醇 为溶剂,
反应 10.0h,
以35%的产率得到Acetic acid (2R,3S,4S,5R,6R)-3,5-diacetoxy-2-acetoxymethyl-6-[3-((2R,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yl)-ureido]-tetrahydro-pyran-4-yl ester