Реакция #1559799

Уравнение реакции

N-(4-((2-chloropyridin-4-yl)oxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide

1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

K2CO3

→

N-(4-((2-(1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-pyrazol-4-yl)pyridin-4-yl)oxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide

Выход 88.0%

Растворители

dioxane

H2O

Условия реакции

Обработка

1. 1
   Другоеwas sparged with Ar
2. 2
   Другоеsparged with Ar again
3. 3
   ТемператураThe mixture was cooled to RT
4. 4
   workup.ADDITIONtreated with satd
5. 5
   ЭкстракцияNaHCO3, extracted with EtOAc (2×)
6. 6
   Промывкаthe combined organics were washed with brine
7. 7
   Сушкаdried over MgSO4
8. 8
   Концентрированиеconcentrated to dryness
9. 9
   Другоеpurified via silica gel chromatography (EtOAc/Hex)

Методика

A mixture of N-(4-((2-chloropyridin-4-yl)oxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (0.101 g, 0.214 mmol), 1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (0.098 g, 0.278 mmol) and K2CO3 (0.089 g, 0.642 mmol) in dioxane (2 mL) and H2O (0.333 mL) was sparged with Ar, treated with Pd(PPh3)4 (0.012 g, 10.70 μmol), sparged with Ar again, and heated to 70° C. overnight. The mixture was cooled to RT, treated with satd. NaHCO3, extracted with EtOAc (2×) and the combined organics were washed with brine, dried over MgSO4, concentrated to dryness and purified via silica gel chromatography (EtOAc/Hex) to afford N-(4-((2-(1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-pyrazol-4-yl)pyridin-4-yl)oxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (124 mg, 88%) as a white solid. 1H NMR (400 MHz, DMSO-d6): δ 12.44 (s, 1H); 8.58-8.59 (m, 2H); 8.39 (d, J=5.7 Hz, 1H); 8.23 (s, 1H); 8.16 (dd, J=6.6, 2.2 Hz, 1H); 8.01 (s, 1H); 7.60-7.62 (m, 3H); 7.43 (m, 2H); 7.19 (d, J=2.5 Hz, 1H); 6.43-6.75 (m, 2H); 4.18 (t, J=5.1 Hz, 2H); 3.89 (t, J=5.2 Hz, 2H); 0.75 (s, 9H); −0.12 (s, 6H); MS (ESI) m/z: 662.3 (M+H+).

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