dimethyl (1RS,2RS,3SR,4SR,5SR,6RS)-5-exo-amino-6-endo-bromo-7-oxabicyclo<2.2.1>heptane-2-exo,3-exo-dicarboxylate 、
苯甲酰氯 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
以86%的产率得到dimethyl (1RS,2RS,3SR,4SR,5SR,6RS)-5-exo-(benzoylamino)-6-endo-bromo-7-oxabicyclo<2.2.1>heptane-2-exo,3-exo-dicarboxylate