反应详情

Ethyl 3-(2,5-dioxo-3-phenyl-2,5-dihydro-pyrrol-1-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate was prepared (0.41 g, 58%) in the same manner as described in the above example 5 (20) from ethyl 3-amino-2-(2-methyl-[1,3]dioxolan-2-yl)propionate (0.40 g, 1.96 mmol) and phenylmaleic anhydride (0.57 g, 2.16 mmol), and the obtained product was identified with the following NMR data.