反应详情

To N-(3-(2-(2-chloropyrimidin-4-yl)acetyl)-2-fluorophenyl)-2,5-difluorobenzenesulfonamide (1.5 g, 3.40 mmol) was added DMA (10 mL) and NBS (0.61 g, 3427 mmol). After stirring at rt for 10 min, (2R,6S)-2,6-dimethyl-4-morpholinecarbothioamide (0.800 g, 4.59 mmol) was added and stirring continued for 2 h. Water was added and the solid was collected by filtration and dried over two days to afford the title compound of Step A (1.80 g, 89% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 10.80 (s, 1H), 8.31 (d, J=5.4 Hz, 1H), 7.49-7.63 (m, 3H), 7.45 (t, J=7.6 Hz, 1H), 7.39 (t, J=6.4 Hz, 1H), 7.31 (t, J=7.8 Hz, 1H), 6.46 (d, J=5.3 Hz, 1H), 3.88 (d, J=11.4 Hz, 1H), 3.66 (br. s., 1H), 2.94 (s, 2H), 2.78 (s, 2H), 1.14 (d, J=6.0 Hz, 6H). m/z (ES+): 597 [M+H]+.

1. stirringstirring
2. waitcontinued for 2 h
3. filtrationthe solid was collected by filtration
4. customdried over two days