2,2,2-Trichloroethyl alpha-[4-cyclopropylmethoxycarbonylthio-3-phenoxyacetamido-2-oxoazetidin-1-yl]-alpha-[2-bromo-1-(piperidin-1-yl)ethylidene]acetate 、
盐酸 、 、
甲醇 在
苯 、
水 作用下,
反应 0.5h,
以to give 2,2,2-trichloroethyl α-[4-cyclopropylmethoxycarbonylthio-3-phenoxyacetamido-2-oxoazetidin-1-yl]-α-(2-bromo-1-hydroxyethylidene)-acetate (434 mg)的产率得到2,2,2-trichloroethyl α-[4-cyclopropylmethoxycarbonylthio-3-phenoxyacetamido-2-oxo-azetidine-1yl]-α-(2-bromo-1-hydroxyethylidene)acetate