Triethylamine → {1-[1-(3-fluoro-4-quinolin-6-ylbenzoyl)piperidin-4-yl]-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-3-yl}acetonitrile

Participants

Reaction Conditions

Reaction Steps

To a solution of {4-[(4-{3-(cyanomethyl)-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-1-yl}piperidin-1-yl)carbonyl]-2-fluorophenyl}boronic acid (50 mg, 0.08 mmol) in DMF (2 mL) were added 6-bromoquinoline (15 mg, 0.076 mmol), triethylamine (0.021 mL, 0.15 mmol) and 3 drops of 2 N K2CO3 aqueous solution. The mixture was degased and bis(triphenylphosphine)palladium(II) chloride (5.4 mg, 0.0076 mmol) was added. The reaction mixture was stirred at 140° C. in a microwave oven for 25 minutes, then cooled to room temperature and filtered. The filtrate was purified by HPLC to afford a white powder. The white powder was dissolved in a 5 mL of DCM/TFA (1:2). After being stirred at room temperature for 1 hour, the solution was concentrated. The residue was dissolved in 5 mL of 10% ethylenediamine in THF. After being stirred at room temperature for 2 hours, the solution was concentrated. The residue was purified by HPLC (method B) to afford the title compound {1-[1-(3-fluoro-4-quinolin-6-ylbenzoyl)piperidin-4-yl]-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-3-yl}acetonitrile. LC-MS: 612.2 (M+H)+.

Provenance & Evidence