Acetonitrile → 2-(1-(2,2-difluoroethyl)-3-(4-(7-(1-methyl-1H-pyrazol-4-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)azetidin-3-yl)acetonitrile

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-(3-(4-(7-(1-methyl-1H-pyrazol-4-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)azetidin-3-yl)acetonitrile hydrochloride (Example 62; 30.0 mg, 0.0694 mmol) in acetonitrile (694 μL, 0.0694 mmol) was added K2CO3 (38.4 mg, 0.278 mmol) and 2,2-difluoroethyl trifluoromethanesulfonate (29.7 mg, 0.139 mmol). After heating to 45° C. for 2 hours, the reaction was incomplete and another portion of 2,2-difluoroethyl trifluoromethanesulfonate (20.0 mg, 0.0936 mmol) was added to drive to completion. Purification of the crude reaction mixture by reverse phase HPLC afforded 2-(1-(2,2-difluoroethyl)-3-(4-(7-(1-methyl-1H-pyrazol-4-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)azetidin-3-yl)acetonitrile (13.2 mg, 45% yield). MS (apci) m/z=424.2 (M+1-1).

Provenance & Evidence