Cesium carbonate → HCID 68158245, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-amino-6-[(S)-1-(7-bromo-1-methyl-1H-benzoimidazol-2-yl)ethylamino]pyrimidine-5-carbonitrile (100 mg, 0.27 mmol), 3-cyanobenzeneboronic acid (51 mg, 0.35 mmol), Pd(PPh3)4 (31 mg, 0.03 mmol) and Cs2CO3 (175 mg, 0.54 mmol) in dioxane (3 mL) and H2O (1.5 mL) was heated for 30 min by microwave irradiation at 140° C. The reaction solution was loaded onto an Isolute® SCX-2 cartridge. The cartridge was washed with MeOH, followed by 2M NH3 in MeOH. The basic fractions were combined and concentrated in vacuo. The resulting residue was purified by column chromatography (Si—PPC, gradient 0-10% 2M NH3 in MeOH/DCM) to afford 422 as a white solid (41 mg, 39%). LCMS (Method K): RT 3.08 min [M+H]+ 395. 1H NMR (DMSO-d6, 400 MHz): δ 8.03 (1H, s), 7.97 (1H, s), 7.94-7.91 (1H, m), 7.82-7.80 (1H, m), 7.72-7.66 (3H, m), 7.32 (2H, bs), 7.26 (1H, dd, J=8.0, 7.5 Hz), 7.07 (1H, dd, J=7.5, 1.0 Hz), 5.65 (1H, dq, J=7.0, 7.0 Hz), 3.29 (3H, s), 1.60 (3H, d, J=7.0 Hz)

Provenance & Evidence