反应详情

A solution of 7.66 g (20.0 mmol) of cyclopropyl-(5-[(2,6-difluoro-3,5-dimethoxy-phenylamino)-methyl]-2-methylsulfanyl-pyrimidin-4-yl)-amine in 150 mL of dry THF was cooled to 0° C. To this solution was added 2.00 g (50.1 mmol, 2.5 equivalents) of NaH as a 60% oil suspension. The reaction was stirred for 0.5 hour, the ice bath was removed, and the reaction was stirred for another 0.5 hour. To the reaction was added 9.74 g (60.1 mmol, 3.0 equivalents) of CDI. After 0.5 hour the reaction was warmed to reflux for 24 hous.r The reaction was concentrated in vacuo and the residue was partitioned between dichloromethane and a saturated solution of ammonium chloride. The dichloromethane layer was washed again with ammonium chloride and then once with a saturated solution of NaCl, dried, and concentrated in vacuo. The residue was stirred with diethyl ether and the suspension filtered to give 7.73 g (93%) of the title compound as a solid: mp 173° C.–176° C. MS (APCI) (m+1)/z 409.1 Analysis calculated for C18H18F2N4SO3: C, 52.93; H, 4.44; N, 13.72. Found: C, 52.74; H, 4.34; N, 13.80.

1. customthe ice bath was removed
2. stirringthe reaction was stirred for another 0.5 hour
3. temperatureAfter 0.5 hour the reaction was warmed
4. temperatureto reflux for 24 hous.r The reaction
5. concentrationwas concentrated in vacuo
6. customthe residue was partitioned between dichloromethane
7. washThe dichloromethane layer was washed again with ammonium chloride
8. dry with materialonce with a saturated solution of NaCl, dried
9. concentrationconcentrated in vacuo
10. stirringThe residue was stirred with diethyl ether
11. filtrationthe suspension filtered