反应详情

温度

80 °C

To a solution of 2.41 g (10.0 mmol) of 5-(4-chlorobutylthio)imidazo[1,2-a]pyridine and 1.00 g (10.0 mmol) of hydantoin in 30 ml of N,N-dimethylformamide, 1.50 ml (10.0 mmol) of 1,8-diazabicyclo[5.4.0]-7-undecene was added, followed by stirring at 80° C. for 16 hours. After the reaction mixture was cooled, water was added; the mixture was extracted with ethyl acetate and dried, after which the solvent was distilled off. The residue was purified by column chromatography (eluent, chloroform/methanol=20/1→10/1) to yield 1.27 g (41.7%, yellow solid) of the desired product.

1. temperatureAfter the reaction mixture was cooled
2. extractionthe mixture was extracted with ethyl acetate
3. customdried
4. distillationafter which the solvent was distilled off
5. customThe residue was purified by column chromatography (eluent, chloroform/methanol=20/1→10/1)