1,4-di-O-acetyl-2-azido-6-O-benzyl-2-deoxy-D-galactopyranose 、 Acetic acid (4aS,6S,7R,8S,8aR)-8-benzyloxy-2,2-dimethyl-6-phenylsulfanyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl ester 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 0.25h,
以90%的产率得到Acetic acid (4aS,6R,7R,8S,8aR)-8-benzyloxy-6-((3R,4R,5R,6R)-2,5-diacetoxy-3-azido-6-benzyloxymethyl-tetrahydro-pyran-4-yloxy)-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl ester