反应详情

A mixture of 3-chloro-2-fluoro-4-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)aniline (0.250 g, 0.784 mmol) and TEA (0.150 mL, 1.076 mmol) in DCM (5 mL) was treated drop-wise with a solution of Example B2 (0.219 g, 0.941 mmol) in DCM (5 mL), warmed to RT and stirred overnight. The mixture was treated with water, extracted with DCM (3×) and the combined organics were dried over Na2SO4, concentrated to dryness and purified via silica gel chromatography (MeOH/DCM). The material was treated with MeCN, sonicated and the resulting solid collected via filtration to afford N-(3-chloro-2-fluoro-4-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)phenyl)-2-oxo-3-(tetrahydro-2H-pyran-4-yl)imidazolidine-1-carboxamide (242 mg, 60%). 1H NMR (400 MHz, DMSO-d6): δ 10.86 (s, 1 H), 8.36 (d, J=5.7 Hz, 1 H), 8.26 (s, 1 H), 8.18 (t, J=8.9 Hz, 1 H), 7.97 (s, 1 H), 7.25-7.20 (m, 2 H), 6.65 (dd, J=5.7, 2.4 Hz, 1 H), 3.90 (m, 3 H), 3.84 (s, 3 H), 3.81 (m, 2 H), 3.47 (m, 2 H), 3.38 (m, 2 H), 1.77-1.65 (m, 2 H), 1.59 (m, 2H); MS (ESI) m/z: (M+H+): 515.1.

1. extractionextracted with DCM (3×)
2. dry with materialthe combined organics were dried over Na2SO4
3. concentrationconcentrated to dryness
4. custompurified via silica gel chromatography (MeOH/DCM)
5. additionThe material was treated with MeCN
6. customsonicated
7. filtrationthe resulting solid collected via filtration