反应详情

Sodium hydride (0.014 g, 0.583 mmol) was added to a solution of methyl 2-(5-methyl-6H-thieno[2,3-b]pyrrol-4-yl)acetate (0.109 g, 0.52 mmol) in DMF (5 mL) at 0° C. The mixture was stirred 1 h at 0° C. before sequential addition of the 1-(chloromethyl)-4-(methylsulfonyl)benzene (0.156 g, 0.762 mmol) and sodium iodide (0.0935 g, 0.624 mmol). The reaction mixture was allowed to warm up to ambient temperature over 4 h. EtOAc was added and the resulting solution washed with water. The layers were separated and the organic solution was dried over MgSO4, filtered and concentrated under reduced pressure. The crude material was purified by chromatography on silica gel (heptane/EtOAc: 80/20 to 50/50) to give the title compound (0.117 g, 59.6%): LC/MS (Table 1, Method b) Rt=2.45 min; MS m/z 395 (M+NH4)+.

1. washthe resulting solution washed with water
2. customThe layers were separated
3. dry with materialthe organic solution was dried over MgSO4
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe crude material was purified by chromatography on silica gel (heptane/EtOAc: 80/20 to 50/50)