反应详情

Add lithium hydroxide (0.10 g, 4.18 mmol) to a suspension of 3-[(4-cyano-phenylcarbamoyl)-methoxy]-benzoic acid methyl ester (0.50 g, 1.61 mmol) in a 1:1:1 mixture of water: MeOH: tetrahydrofuran. Stir the mixture at room temperature for 36 h then dilute with water and wash with EtOAc. Adjust the pH of the aqueous phase by the addition of a 1 N solution of hydrochloric acid. Extract the mixture with EtOAc and dry the combined organic phase over anhydrous sodium sulfate. Concentrate under reduced pressure to provide 0.290 g of 3-[(4-cyano-phenylcarbamoyl)-methoxy]-benzoic acid as a solid.

1. washwash with EtOAc
2. additionby the addition of a 1 N solution of hydrochloric acid
3. extractionExtract the mixture with EtOAc
4. dry with materialdry the combined organic phase over anhydrous sodium sulfate
5. concentrationConcentrate under reduced pressure