反应详情

温度

100 °C

An optically-active compound of 4-(3-methyl-1,6-diazaspiro[3.5]non-6-yl)-7H-pyrrolo[2,3-d]pyrimidine (25 mg) was mixed with 1-cyanoacetyl-3,5-dimethylpyrazole (32 mg) and 1,4-dioxane (750 μl), and the mixture was stirred at 100° C. for 3.5 hours. The mixture was cooled to room temperature. Thereto were added water and saturated aqueous sodium bicarbonate solution, and the mixture was extracted with ethyl acetate. The separated aqueous layer was extracted with ethyl acetate five times, and the combined organic layer was washed with water and concentrated under reduced pressure. The resulting residue was purified by silica-gel thin layer chromatography (eluent: chloroform/methanol=9/1). The resulting residue was purified by silica-gel thin layer chromatography (eluent: ethyl acetate/methanol=93/7) again. The resulting solid (8.0 mg) was slurry-washed with n-hexane/ethyl acetate solution to give the titled compound (6.7 mg).

1. temperatureThe mixture was cooled to room temperature
2. extractionthe mixture was extracted with ethyl acetate
3. extractionThe separated aqueous layer was extracted with ethyl acetate five times
4. washthe combined organic layer was washed with water
5. concentrationconcentrated under reduced pressure
6. customThe resulting residue was purified by silica-gel thin layer chromatography (eluent: chloroform/methanol=9/1)
7. customThe resulting residue was purified by silica-gel thin layer chromatography (eluent: ethyl acetate/methanol=93/7) again
8. washThe resulting solid (8.0 mg) was slurry-washed with n-hexane/ethyl acetate solution