反应详情

A mixture of 100 mg (0.47 mmol) of imidazo[1,2-a]pyridin-2-one hydrobromide salt and 122 mg (0.47 mmol) 3-bromomethyl-5-chloro-benzo[b]thiophene in 5 mL of THF is treated with 1 mL (1.0 mmol) of 1M lithium bis(trimethylsilyl)amide THF solution at −78° C. The resulting mixture is stirred this temperature for 1 h and the mixture is quenched with saturated ammonium chloride solution. The product is extracted with ethyl acetate. The organic layer is washed with water and brine, dried over sodium sulfate, filtered and concentrated in vacuo. The residue is purified by flash chromatography to give the desired compound.

1. customthe mixture is quenched with saturated ammonium chloride solution
2. extractionThe product is extracted with ethyl acetate
3. washThe organic layer is washed with water and brine
4. dry with materialdried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customThe residue is purified by flash chromatography