反应详情

3-(4-Amino-2-chlorothieno[3,2-d]pyrimidin-7-yl)benzoic acid (300 mg, 0.98 mmol) was dissolved in N,N-dimethylformamide (5 mL) and then methylamine hydrochloride (329 mg, 4.91 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (282 mg, 1.47 mmol), hydroxybenzotriazole (239 mg, 1.76 mmol) and trimethylamine (0.889 mL, 6.38 mmol) were added. The reaction mixture was stirred at room temperature for a day. The reaction mixture was diluted with ethyl acetate and then washed with ammonium chloride aqueous solution. The organic layer was dried with magnesium sulfate, filtered with celite and then concentrated. Purification by chromatography (1/4 ethyl acetate/hexane) yielded the target compound (280 mg, 89% yield).

1. washwashed with ammonium chloride aqueous solution
2. dry with materialThe organic layer was dried with magnesium sulfate
3. filtrationfiltered with celite
4. concentrationconcentrated
5. customPurification by chromatography (1/4 ethyl acetate/hexane)