(3aS,4R,5S,7aS)-5-azido-7-bromo-2,2-dimethyl-3a,4,5,7a-tetrahydro-1,3-benzodioxol-4-yl prop-2-ynoate 以
甲苯 为溶剂,
反应 2.0h,
以74%的产率得到(5aR,6R,7R,9aS)-8-bromo-6,7-(2,2-dimethyl-1,3-dioxolane)-5a,6,7,9a-tetrahydro-4H-[1,2,3]triazolo[5,1-c][1,4]benzoxazin-4-one