Potassium Carbonate → (S)-tert-butyl 3-(2-(5-chloro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-fluoropyrimidin-4-ylamino)piperidine-1-carboxylate

Temperatur

90 °C

To a solution of 5-chloro-1-(p-tolylsulfonyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrrolo[2,3-b]pyridine (1.8 g, 4.2 mmol) and tert-butyl (3S)-3-[(2-chloro-5-fluoro-pyrimidin-4-yl)amino]piperidine-1-carboxylate, 5a, (1.2 g, 3.7 mmol) in DME (15 mL) and H2O (5 mL) was added K2CO3 (1.7 g, 12.1 mmol). The mixture was purged with nitrogen for 15 min. To the mixture was added tetrakis triphenylphosphine palladium(0) (0.2 g, 0.2 mmol) and the reaction mixture was heated at 90° C. for 3 days. The reaction was cooled down to room temperature and then diluted with EtOAc/H2O. The layers were separated and the organic phase was washed with brine, dried (MgSO4), filtered and evaporated to dryness. The resulting residue was dissolved in CH2Cl2 and purified by silica gel chromatography (0-100% EtOAc/Hexanes) to afford the desired product, 1b.

1. customThe mixture was purged with nitrogen for 15 min
2. temperatureThe reaction was cooled down to room temperature
3. customThe layers were separated
4. washthe organic phase was washed with brine
5. dry with materialdried (MgSO4)
6. filtrationfiltered
7. customevaporated to dryness
8. dissolutionThe resulting residue was dissolved in CH2Cl2
9. custompurified by silica gel chromatography (0-100% EtOAc/Hexanes)

ORD-Eintrag

ord-9e72ff15e8654402947a43360a5206a6

Quelldatensatz

uspto-grants-2016_05

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09345708B2