反应详情

By an operation in the same manner as in Reference Example 3 and using cerium chloride (9.25 g), 3 mol/L ethylmagnesium bromide-diethyl ether solution (11.0 mL) and benzyl (2S)-2-isopropyl-3-oxopyrrolidine-1-carboxylate (3.92 g), the title compound was obtained as colorless oil (yield: 2.21 g, yield: 51%).