A mixture of (S)-1-[1-(cis-3-benzyloxycyclobutyl)-6-fluoro-1H-benzoimidazol-2-yl]ethylamine (50 mg, 0.15 mmol), 4-amino-6-chloropyrimidine-5-carbonitrile (23 mg, 0.15 mmol) and DIPEA (0.13 mL, 0.74 mmol) in IPA (3 mL) was heated at 90° C. in a sealed vial for 16 h. After cooling to RT, the reaction mixture was concentrated in vacuo, dissolved in DCM and loaded onto an Isolute® SCX-2 cartridge which was washed with DCM then MeOH and then 2M NH3/MeOH. The product containing fractions were combined and concentrated in vacuo. The resulting residue was purified by column chromatography (Si—PCC, gradient 0-5% 2M NH3/MeOH in DCM) to afford the title compound as a colourless glassy solid (50 mg, 75%). LCMS (Method B): RT 3.11 min [M+H]+ 458. 110185004
