反应详情

By an operation in the same manner as in Reference Example 3 and using cerium chloride (12.9 g), 2 mol/L propylmagnesium bromide—THF solution (20 mL) and benzyl (2S)-2-methyl-3-oxopyrrolidine-1-carboxylate (3.5 g), the title compound was obtained as pale-yellow oil (yield: 2.32 g, yield: 56%).