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ethyl 3-amino-2-(2-methyl-[1,3]dioxolan-2-yl)propionate

4-bromophthalic anhydride

→

Ethyl 3-(5-bromo-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate

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실험 절차

Ethyl 3-(5-bromo-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate was prepared (0.42 g, 52%) 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, 1.97 mmol) and 4-bromophthalic anhydride (0.58 g, 2.56 mmol), and the obtained product was identified with the following NMR data.

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