反应详情

温度

40 °C

LiOH.H2O (0.044 g, 1.06 mmol) was added to tert-butyl 4-(4-((4-(2-(2-methoxy-2-oxoethyl)phenethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperazine-1-carboxylate (I6) (0.211 g, 0.352 mmol) in THF (10 mL), water (2.5 mL) and methanol (1 mL). The resulting mixture was allowed to stir for 3 hours at 40° C. The volatiles were removed in vacuo and the residue was diluted with EtOAc (100 mL) and 2 M aq. NaOH (100 mL). The layers were separated and the aqueous layer was extracted with EtOAc (70 mL), the organic layers were combined, washed with brine (100 mL), dried (MgSO4), filtered and concentrated under reduced pressure to give the title compound (I7) (0.195 g, 96% yield) as a yellow solid; 1H NMR (400 MHz, d6-DMSO) δ 10.02 (s, 1H), 8.61 (s, 1H), 7.64-7.55 (m, 2H), 7.26-7.14 (m, 4H), 6.97-6.91 (m, 2H), 3.65 (s, 2H), 3.50-3.41 (m, 4H), 3.10-2.93 (m, 8H), 1.42 (s, 9H). LCMS Method C: rt 6.32 min; m/z 586.3 [M+H]+.

1. customThe volatiles were removed in vacuo
2. additionthe residue was diluted with EtOAc (100 mL) and 2 M aq. NaOH (100 mL)
3. customThe layers were separated
4. extractionthe aqueous layer was extracted with EtOAc (70 mL)
5. washwashed with brine (100 mL)
6. dry with materialdried (MgSO4)
7. filtrationfiltered
8. concentrationconcentrated under reduced pressure