反应详情

温度

95 °C

A mixture of Example C1 (0.200 g, 0.479 mmol), K2CO3 (0.132 g, 0.957 mmol) and 2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (0.126 g, 0.574 mmol) in dioxane (8 mL) and water (2 mL) was sparged with Ar, treated with Pd(PPh3)4 (0.055 g, 0.048 mmol), sparged again with Ar and heated at 95° C. overnight. The mixture was cooled to RT, treated with satd. NaHCO3 and extracted with EtOAc (4×). The combined organics were dried over Na2SO4, concentrated to dryness, suspended in MeCN and sonicated. The resulting solid was collected via filtration and dried to afford N-(5-((6′-methyl-[2,3′-bipyridin]-4-yl)oxy)pyridin-2-yl)-2-oxo-3-(tetrahydro-2H-pyran-4-yl)imidazolidine-1-carboxamide (118 mg, 52%). 1H NMR (400 MHz, DMSO-d6): δ 10.97 (s, 1 H), 9.09 (d, J=2.3 Hz, 1 H), 8.54 (d, J=5.7 Hz, 1 H), 8.29-8.24 (m, 2 H), 8.07 (d, J=9.0 Hz, 1 H), 7.75 (dd, J=9.0, 2.9 Hz, 1 H), 7.63 (d, J=2.4 Hz, 1 H), 7.33 (d, J=8.2 Hz, 1 H), 6.87 (dd, J=5.7, 2.4 Hz, 1 H), 3.92-3.77 (m, 5 H), 3.48-3.34 (m, 4 H), 2.50 (s, 3 H), 1.77-1.65 (m, 2 H), 1.62-1.55 (m, 2H); MS (ESI) m/z: 475.2 (M+H+).

1. customsparged again with Ar
2. temperatureThe mixture was cooled to RT
3. additiontreated with satd
4. extractionNaHCO3 and extracted with EtOAc (4×)
5. dry with materialThe combined organics were dried over Na2SO4
6. concentrationconcentrated to dryness
7. customsonicated
8. filtrationThe resulting solid was collected via filtration
9. customdried