(1S,2R)-1-((2R,3R,4S,5S,6R)-3-acetamido-4-acetoxy-6-chloro-6-(methoxycarbonyl)-5-propyltetrahydro-2H-pyran-2-yl)propane-1,2,3-triyl triacetate 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以78 mg的产率得到methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-2,6-anhydro-3,5-dideoxy-3-C-propyl-D-glycero-D-galacto-non-2-enonate