反应详情

(5-Bromo-pyridin-3-yl)-acetic acid (200 mg, 0.93 mmol), 2.0 M dimethylamine solution (0.93 mL, 1.9 mmol), HOBt (25 mg, 0.19 mmol) and triethylamine (0.38 mL, 2.8 mmol) are dissolved in 5.0 mL of DMF. Then 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (290 mg, 1.9 mmol) is added. The reaction mixture is stirred for 16 hrs before 30 mL of water and 30 mL of DCM are added. The aqueous layer is separated and extracted with DCM (4×10 mL). The organic layers are combined, dried and concentrated to give the crude product which is purified by flash chromatography to give 180 mg of 2-(5-bromo-pyridin-3-yl)-N,N-dimethyl-acetamide.

1. additionare added
2. customThe aqueous layer is separated
3. extractionextracted with DCM (4×10 mL)
4. customdried
5. concentrationconcentrated
6. customto give the crude product which
7. customis purified by flash chromatography