反应详情

A solution of the product from Step B (0.300 g; 0.8 mmol) in DMP (8 mL) was treated with cesium carbonate (0.521 g; 1.6 mmol), 2-chloroacetophenone (0.124 g; 0.8 mmol), and stirred at room temperature for 16 hours. The reaction mixture was partitioned between ethyl acetate and saturated NaHCO3 solution. The organic layer was washed twice with saturated NaHCO3 solution, brine, dried (Na2SO4), filtered, and concentrated in vacuo. Purification by MPLC (silica gel; 0% to 20% ethyl acetate:hexane gradient) afforded the title compound. HPLC/MS: 492.9 (M+1), 494.9 (M+3); Rt=4.58 min.

1. customThe reaction mixture was partitioned between ethyl acetate and saturated NaHCO3 solution
2. washThe organic layer was washed twice with saturated NaHCO3 solution, brine
3. dry with materialdried (Na2SO4)
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customPurification by MPLC (silica gel; 0% to 20% ethyl acetate:hexane gradient)