反应详情

Stir N-methyl-5-(2-oxopyrrolidin-1-yl)-N-propyl-isophthalamic acid methyl ester (100 mg, 0.314 mmol) in 1 N NaOH (0.5 mL) and methanol (0.5 mL) at room temperature for 3 days. Dilute the mixture with water (1 mL) and wash the aqueous solution with diethyl ether. Acidify with 1 N HCl (0.55 mL) and extract with ethyl acetate (3×2 mL). Concentrate the organic layers to give the title compound as a crude residue which is used in the next step without further purification.

1. washwash the aqueous solution with diethyl ether
2. extractionextract with ethyl acetate (3×2 mL)
3. concentrationConcentrate the organic layers