反应详情

A suspension of 107 (2.00 g, 5.20 mmol), 2-methoxyethylamine (1.954 g, 26.02 mmol), NaBH(OAc)3 (5.52 g, 26.02 mmol) and acetic acid (1.49 ml, 26.02 mmol) in anhydrous dichloromethane was stirred at room temperature under nitrogen for five days. The reaction mixture was then carefully quenched with a saturated solution of NaHCO3 (pH 8-9), and extracted with DCM. The extract was dried over anhydrous magnesium sulfate, filtered, and concentrated to afford the title compound 108 as a yellow-orange sticky oil. The material was used in the next step without further purification. MS (m/z): 444.2 (M+H).

1. customThe reaction mixture was then carefully quenched with a saturated solution of NaHCO3 (pH 8-9)
2. extractionextracted with DCM
3. dry with materialThe extract was dried over anhydrous magnesium sulfate
4. filtrationfiltered
5. concentrationconcentrated