反应详情

温度

-40 °C

To a 25 mL 3-neck RBF previously equipped with a magnetic stirrer and CaCl2 guard tube was added 4-amino-2-((5-fluoro-2-((4-(2-methoxyethoxy)phenyl)amino)pyrimidin-4-yl)amino)phenol (0.075 g in 5 mL DCM) and it was cooled to −40° C. and acryloyl chloride (0.019 g in 3 mL DCM) was slowly added. The reaction was warmed to room temperature and stirred for 30 min. The reaction was monitored on TLC using hexane:ethyl acetate (7:3) as mobile phase. The reaction was complete after 30 min. The reaction mixture was poured in water (100 mL) and basified using sodium bicarbonate. The mixture was extracted with DCM (2×25 mL) and the combined organic layer was washed with brine solution, dried over sodium sulfate and concentrated completely under reduced pressure at 40° C. Crude material was purified by preparative-HPLC to give 2.7 mg of N-(3-((5-fluoro-2-((4-(2-methoxyethoxy)phenyl)amino)pyrimidin-4-yl)amino)-4-hydroxyphenyl)acrylamide. 1H NMR: DMSO-d6 (400 MHz) 3.25 (s, 3H), 3.58 (s, 2H), 3.91 (s, 2H), 5.70 (d, 1H, J=10), 6.20 (d, 1H, J=16.8), 6.39 (dd, 1H, J=10.4, 17.2), 6.65 (d, 2H, J=8.8), 6.87 (d, 1H, J=8.8), 7.45 (m, 3H), 7.78 (s, 1H), 8.01 (s, 1H), 8.21 (s, 1H), 8.48 (s, 1H), 8.92 (s, 1H), 9.98 (s, 1H).

1. customTo a 25 mL 3-neck RBF previously equipped with a magnetic stirrer and CaCl2 guard tube
2. temperatureThe reaction was warmed to room temperature
3. waitThe reaction was complete after 30 min
4. extractionThe mixture was extracted with DCM (2×25 mL)
5. washthe combined organic layer was washed with brine solution
6. dry with materialdried over sodium sulfate
7. concentrationconcentrated completely under reduced pressure at 40° C
8. customCrude material was purified by preparative-HPLC