反应详情

To a solution of 2-amino-5-mesityl-7-methyl-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one (88 mg, 0.31 mmol) and N,N-dimethylformamide (3 ml) was added sodium hydride (60% in oil, 16 mg, 0.40 mmol) at 0° C. and stirred for 0.5 hour. After stirring at room temperature for 0.5 hour, to the mixture was added a solution of ethyl iodide (62 mg, 0.40 mmol) and N,N-dimethylformamide (1 ml) at 0° C. and stirred for 0.5 hour. After stirring at room temperature for 3 hours, the mixture was diluted with water (20 ml) and extracted with ethyl acetate (50 ml×3). The extracts were combined, washed with brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by silica gel chromatography eluting with hexane/ethyl acetate (3:1) to give 53 mg (55%) of the title compound.

1. stirringAfter stirring at room temperature for 0.5 hour, to the mixture
2. stirringstirred for 0.5 hour
3. stirringAfter stirring at room temperature for 3 hours
4. extractionextracted with ethyl acetate (50 ml×3)
5. washwashed with brine
6. dry with materialdried over sodium sulfate
7. concentrationconcentrated in vacuo
8. customThe residue was purified by silica gel chromatography
9. washeluting with hexane/ethyl acetate (3:1)