反应详情

To a 50 mL round-bottom flask were added 4-(5-bromo-2-chloropyrimidin-4-yl)morpholine-3-carboxylic acid (PREPARATION x30, 300 mg, 0.930 mmol), 1-hydroxybenzotriazole (126 mg, 0.930 mmol), and (S)-1-phenylethanamine (118 μl, 0.930 mmol) in 1,4-dioxane (9.3 mL) to give a green solution. 1-Ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (178 mg, 0.930 mmol) was added to the solution, which was allowed to react at room temperature for 6 hours. The mixture was subsequently partitioned between aqueous saturated NaHCO3 and ethyl acetate. The aqueous layer was extracted with ethyl acetate and the combined organic layers were dried over MgSO4, filtered, and concentrated to give the title compound, which was used without further purification. ESI-MS m/z [M+H]+ calc'd for C17H18BrClN4O2, 425.03. found 425.2.

1. customto give a green solution
2. customto react at room temperature for 6 hours
3. customThe mixture was subsequently partitioned between aqueous saturated NaHCO3 and ethyl acetate
4. extractionThe aqueous layer was extracted with ethyl acetate
5. dry with materialthe combined organic layers were dried over MgSO4
6. filtrationfiltered
7. concentrationconcentrated