反应详情

温度

70 °C

A mixture of sodium ethanethiolate (120 mg, 1.5 mmol) and 4-(4-chloro-2-fluoroanilino)-73chloropropoxy)6-methoxyquinazoline (227 mg, 0.57 mmol) in DMF (10 ml) was stirred and heated at 70° C. for 3 hours. The reaction mixture was allowed to cool, was diluted with water and extracted with ethyl acetate (3×75 ml). The extracts were combined, washed with water (×2), and then brine, and dried (MgSO4). The solvent was removed by evaporation and the residue was recrystallised from ethyl acetate/hexane to give 4-chloro-2-fuoroanilino)-7-(3-(ethylthio)propoxy)6-methoxyquinazoline (86 mg, 40%).

1. temperatureto cool
2. extractionextracted with ethyl acetate (3×75 ml)
3. washwashed with water (×2)
4. dry with materialbrine, and dried (MgSO4)
5. customThe solvent was removed by evaporation
6. customthe residue was recrystallised from ethyl acetate/hexane