Water → HCID 66717406, compound

Participants

Reaction Steps

To a solution of 4-(thiazol-2-yl)benzyl bromide (1.25 g, 4.92 mmol) obtained in Reference Example 4-(b) in N,N-dimethylformamide (16 ml) were added di-tert-butyl iminodicarboxylate (1.28 g, 5.89 mmol) and potassium carbonate (1.35 g, 9.76 mmol), followed by stirring at room temperature for 3 hours. After completion of the reaction, water was added to the reaction solution, followed by extraction with ethyl acetate. The separated organic layer was washed with a saturated aqueous sodium chloride solution, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The resulting residue was subjected to silica gel column chromatography (eluent; hexane:ethyl acetate=2:1 (V/V)), and fractions containing the desired compound were concentrated under reduced pressure to afford the title compound (2.05 g) substantially quantitatively as a colorless oil.

Provenance & Evidence