2,2,2-Trifluoroethyl trifluoromethanesulfonate → HCID 67456733, compound

Participants

Reaction Steps

A solution of 2-(3-(3-(7-(1-methyl-1H-pyrazol-4-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrrol-1-yl)azetidin-3-yl)acetonitrile trifluoroacetate (Example 127, 100 mg, 0.182 mmol) in dry DMF (1.0 mL) was cooled on an ice bath and DIEA (191 μL, 1.09 mmol) and 2,2,2-trifluoroethyl trifluoromethanesulfonate (63.5 mg, 0.273 mmol) were added sequentially. The ice bath was removed and the reaction mixture was stirred at ambient temperature for 17 hours. The mixture was added to H2O (5 mL), mixed and extracted with DCM. The combined organic extracts were washed with 0.5M Na2CO3 and H2O, and dried over Na2SO4. The crude material was eluted through a SiO2 plug eluting first with DCM then 10% MeOH/EtOAc. The 10% MeOH/EtOAc pool was concentrated to give a colorless glass. The glass was dissolved in minimal DCM and treated with hexanes to afford a white suspension. The suspension was concentrated providing the title compound (25 mg, 31% yield) as a white solid. MS (apci) m/z=441.2.

Provenance & Evidence