溶剂黄146 、 (3S,4R)-3-{N-(3-phenylpropionoyl)-L-phenylalanyl}amino-4-{2-(tert-butyidimethylsilyl)oxy-1-phenyl ethoxy}-azetidin-2-one 、
甲醇乙酸乙酯 在
silica gel 作用下,
以
四氢呋喃 为溶剂,
反应 3.0h,
以260 mg of (3S,4R)-3-{N-(3-phenylpropionoyl)-L-phenylalanyl}amino-4-(2-hydroxy-1-phenylethoxy)-azetidin-2-one was obtained (74% yield)的产率得到(3S,4R)-3-{N-(3-phenylpropionoyl)-L-phenylalanyl}amino-4-(2-hydroxy-1-phenylethoxy)-azetidin-2-one