反应详情

温度

-20 °C

To a suspension of NaH (60% in oil, 1.48 g) in 10 ml of dimethylformamide (DMF) at ice bath temperature was added dropwise a solution of N-(3-fluoro-4-pyridinyl)-3-methyl-1H-indol-1-amine (8.5 g) in 40 ml of DMF. when addition was complete, the mixture was stirred for 15 minutes at ice bath temperature, and then cooled to -20° C. Ethyl chloroacetate (3.95 ml) was added dropwise in 10 ml of DMF. The mixture was stirred at -20° C. for one hour. The mixture was then poured into water and extracted with ethyl acetate. The organic layer was washed with water and dried (sat. NaCl, anhy. MgSO4). After filtering, the solvent was evaporated to yield an oil (12.2 g) which was eluted with 10% ethyl acetate/DCM on a silica gel column via HPLC. The desired fractions were evaporated to yield 6.9 g of a solid, m.p. 105°-108° C.

1. additionwhen addition
2. stirringThe mixture was stirred at -20° C. for one hour
3. extractionextracted with ethyl acetate
4. washThe organic layer was washed with water
5. dry with materialdried (sat. NaCl
6. filtrationAfter filtering
7. customthe solvent was evaporated