反应详情

4-[3-Bromo-4-[(1-pyrrolidinyl)methyl]phenyl 6-methoxy-2-[4-[2-(1-pyrrolidinyl)ethoxy]phenyl]benzo[b]thiophen-3-yl ketone (34 mg; 0.055 mmol) (Part D) was dissolved in dichloroethane (5 mL) in a flame-dried, argon-filled flask, and cooled in an ice-water bath. Ethanethiol (0.16 mL; 2.2 mmol) was added, followed by 0.15 g (1.1 mmol) of aluminum chloride. The resultant slurry was stirred in the cold for 2 h. Saturated aqueous sodium bicarbonate (20 mL) was added, and stirring was continued for 2 h. Extraction was carried out with EtOAc (4×25 mL) and the combined organics were washed with brine and dried by passage through sodium sulfate. The product was isolated as a yellow oil (19 mg; 57% yield) by flash chromatography on silica gel, eluting with a gradient of EtOAc(100-90%)/Et3N(0-5%)/MeOH(0-5%).

1. additionfilled flask
2. temperaturecooled in an ice-water bath
3. stirringstirring
4. waitwas continued for 2 h
5. extractionExtraction
6. washthe combined organics were washed with brine
7. dry with materialdried by passage through sodium sulfate
8. customThe product was isolated as a yellow oil (19 mg; 57% yield) by flash chromatography on silica gel
9. washeluting with a gradient of EtOAc(100-90%)/Et3N(0-5%)/MeOH(0-5%)