Acetic Anhydride → 5-(4-(1-acetyl-5-cyclopropyl-1H-pyrazol-3-ylamino)-5-bromopyrimidin-2-yl)-N-tert butylthiophene-2-sulfonamide

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반응 단계

To 5-(5-bromo-4-(5-cyclopropyl-1H-pyrazol-3-ylamino)pyrimidin-2-yl)-N-tert-butylthiophene-2-sulfonamide (1.6 g, 3.21 mmol, 1.0 eq) in THF/H2O (30 mL/15 mL), Ac2O (0.64 g, 6.42 mmol, 2.0 eq) was added dropwise. The reaction mixture was stirred at room temperature for 1 h. The reaction mixture was filtered to afford compound 5-(4-(1-acetyl-5-cyclopropyl-1H-pyrazol-3-ylamino)-5-bromopyrimidin-2-yl)-N-tert butylthiophene-2-sulfonamide (1.6 g, 92%). LC-MS (m/z)=539 [M+H]+

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