反应详情

To a suspension of 2-amino-5-chlorothiazole hydrochloride (Aldrich) (1.00 g, 5.84 mmol) in tetrahydrofuran (50 mL) was added N-(3-dimethylaminopropyl)-N-ethylcarbodiimide hydrochloride (1.12 g, 5.84 mmol), 1-hydroxybenzotriazole (0.79 g, 5.84 mmol), triethylamine (2.04 mL, 14.6 mmol), and 3-hydroxyadamantane-1-carboxylic acid (Acros) (1.15 g, 5.84 mmol). The mixture was stirred overnight at room temperature and was diluted with ethyl acetate, washed with 1 M aqueous sodium carbonate, dried (Na2SO4), filtered and concentrated. Purification by column chromatography (SiO2) using a gradient of 0% to 100% ethyl acetate:hexane provided the title compound. MS (ESI+) m/z 313 (M+H)+.

1. washwashed with 1 M aqueous sodium carbonate
2. dry with materialdried (Na2SO4)
3. filtrationfiltered
4. concentrationconcentrated
5. customPurification by column chromatography (SiO2)