Sulfuric Acid → (2S)-[3-Fluoro-4-(methylsulfonylamino)phenyl]propionic acid

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Reaction Steps

A solution of N-[(1S)-1-Benzyl-2-hydroxyethyl]-(2S)-2-[3-fluoro-4-(methylsulfonylamino)phenyl]propionamide (100 mg, 0.234 mmol) in 3 N H2SO4 (1 mL) and 1,4-dioxane (1 mL) was heated to 100° C. for 5 h and cooled to room temperature. The solution was diluted with water and extracted with CH2Cl2 several times. The combined organic layers were washed with water, dried over MgSO4, and concentrated in vacuo to afford (2S)-[3-Fluoro-4-(methylsulfonylamino)phenyl]propionic acid.

Provenance & Evidence