反应详情

A solution of HATU (108 mg, 0.28 mmol), 3-chloropropanoic acid (30 mg, 0.28 mmol) and DIEA (0.1 mL) in DMF (1 mL) was stirred at rt. After 3 min, this solution was transferred to a solution of 5-chloro-N2-(2,5-dimethyl-4-(piperidin-4-yl)phenyl)-N4-(5-methyl-1H-pyrazol-3-yl)pyrimidine-2,4-diamine solution (111 mg, 0.27 mmol) in DMF (10 mL). The resulting mixture was stirred at rt overnight. The reaction was quenched with water (20 mL) and extracted with EtOAc (3×30 mL). The combined EtOAc layers were washed with brine (10 mL), dried over Na2SO4 and concentrated in vacuo. The crude product was purified by silica chromatography (0-10% MeOH in DCM gradient with 1% NH3 additive) to give 1-(4-(4-(5-chloro-4-(5-methyl-1H-pyrazol-3-ylamino)pyrimidin-2-ylamino)-2,5-dimethylphenyl)piperidin-1-yl)prop-2-en-1-one as a light brown oil; ESMS m/z 466.1 (M+H+).

1. customThe reaction was quenched with water (20 mL)
2. extractionextracted with EtOAc (3×30 mL)
3. washThe combined EtOAc layers were washed with brine (10 mL)
4. dry with materialdried over Na2SO4
5. concentrationconcentrated in vacuo
6. customThe crude product was purified by silica chromatography (0-10% MeOH in DCM gradient with 1% NH3 additive)