反应 #2320167
ord-48aeac2fbc594ef69588e7f2c8c4cf9f
反应方程式
反应物
试剂
反应条件
后处理
- 1其他the layers were separated
- 2萃取The aqueous layer was extracted with dichloromethane
- 3洗涤The combined organic layer was washed with brine
- 4干燥dried over magnesium sulfate
- 5过滤filtered
- 6浓缩concentrated
- 7其他The residue was purified by flash column chromatography
实验过程
To a solution of Example 113A in 1,2-dichloroethane (10 ml) was added acetone (3 mL) and sodium triacetoxyborohydride (253 mg, 1.194 mmol). The reaction mixture was stirred at room temperature overnight. Saturated sodium bicarbonate was added and the layers were separated. The aqueous layer was extracted with dichloromethane. The combined organic layer was washed with brine, dried over magnesium sulfate, filtered and concentrated. The residue was purified by flash column chromatography using dichloromethane/methanol (80:20) to give the title compound. MS (ESI+) m/z 460.6 (M+H)+; Rt=1.47. 1H NMR (DMSO-d6) δ 8,171 (s, 1H); 8,049 (d, 1H); 7,831(d, 1H); 7,586(m, 3H); 6,837 (dd, 1H); 6,521 (t, 1H); 4,353 (d, 2H); 3,377 (m, 4H); 3,289 (m, 1H); 2,862 (m, 2H); 2,642 (m, 2H); 1,773 (m, 2H); 0,949 (m, 6H).