Cyanoacetic acid → 3-[2-[[4-Amino-3-(2-fluoro-4-phenoxy-phenyl)pyrazolo[3,4-d]pyrimidin-1-yl]methyl]azetidin-1-yl]-3-oxo-propanenitrile

Participants

Reaction Steps

To a mixture of 1-(azetidin-2-ylmethyl)-3-(2-fluoro-4-phenoxy-phenyl)pyrazolo[3,4-d]pyrimidin-4-amine (236.4 mg, 0.610 mmol), 2-cyanoacetic acid (77.2 mg, 0.910 mmol) in DCM (8 mL) in ice bath, was added T3P (0.36 mL, 1.21 mmol) and TEA (0.34 mL, 2.42 mmol). The ice bath was removed and the reaction mixture was stirred at room temperature overnight. The reaction mixture was loaded onto the silica gel column, purified with 0-3% gradient MeOH:CH2CL2, to get 3-[2-[[4-amino-3-(2-fluoro-4-phenoxy-phenyl)pyrazolo[3,4-d]pyrimidin-1-yl]methyl]azetidin-1-yl]-3-oxo-propanenitrile (201 mg) as yellow oil.

Provenance & Evidence