反应详情

1.50 g (3.98 mmol) of 2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoic acid (racemate), 658 mg (3.98 mmol) of ethyl 4-aminobenzoate, 566 mg (3.98 mmol) of Oxima and 620 μl (3.98 mmol) of DIC in 39 ml of dimethylformamide were reacted according to General Method 5B. Filtration gave the title compound. Yield: 1.87 g (85% of theory)

1. filtrationFiltration