反应详情

4-Chloro-7-(3,5-dimethyl-4-isoxazolyl)-6-(methyloxy)-3-nitroquinoline (for a preparation see Intermediate 8) (1.06 g, 3.18 mmol) was dissolved in NMP (5 ml), then DIPEA (0.56 ml, 3.18 mmol) and (tetrahydro-2H-pyran-4-yl)methanamine (0.75 g, 6.51 mmol) were added at room temperature. The reaction mixture immediately changed colour and within 5 minutes, a thick yellow precipitate was formed. The mixture was stirred for 20 min, then diluted with water (30 ml) and stirred for 10 min. The precipitate was collected by filtration and washed with water (2×20 ml), then dried in vacuo to give 7-(3,5-dimethylisoxazol-4-yl)-6-methoxy-3-nitro-N-((tetrahydro-2H-pyran-4-yl)methyl)quinolin-4-amine (1.22 g, 2.96 mmol, 93% yield) as a bright yellow solid. LCMS (formate) Rt 0.88 min, MH+ 413

1. customa thick yellow precipitate was formed
2. stirringstirred for 10 min
3. filtrationThe precipitate was collected by filtration
4. washwashed with water (2×20 ml)
5. customdried in vacuo