反应详情

To a solution of 4-fluoro-3-[[3-(3-fluorophenyl)-5-methoxy-phenyl]methylamino]-2-methyl-phenol (390 mg, 1.1 mmol, 1.0 eq) in DMF (6 mL) was added Cs2CO3 (538 mg, 1.65 mmol, 1.5 eq). The reaction was stirred 30 min, then isopropyl 2-bromoacetate (239 mg, 1.32 mmol, 1.2 eq) was added at room temperature. The reaction mixture was stirred at room temperature for a further 1 h, then water was added and the aqueous layer was extracted with EtOAc. The organic extract was washed with water and brine, dried (Na2SO4), filtered and evaporated in vacuo. The crude product was purified by column chromatography (petroleum ether:EtOAc, 1:0, 100:1, to 20:1) to give the title compound as a colorless oil (400 mg, 80%).

1. stirringThe reaction mixture was stirred at room temperature for a further 1 h
2. extractionthe aqueous layer was extracted with EtOAc
3. extractionThe organic extract
4. washwas washed with water and brine
5. dry with materialdried (Na2SO4)
6. filtrationfiltered
7. customevaporated in vacuo
8. customThe crude product was purified by column chromatography (petroleum ether:EtOAc, 1:0, 100:1, to 20:1)