Potassium Carbonate → HCID 89907791, compound

Participants

Reaction Conditions

Reaction Steps

Tetrahydro-2h-pyran-4-ol (0.361 mL, 3.79 mmol) and K2CO3 (314 mg, 2.275 mmol) were added to a suspension of 5-bromo-6-chloro-N-(4-(trifluoromethoxy)phenyl)nicotinamide (Stage 44.2, 300 mg, 0.758 mmol) in DMF (2 mL) and the RM was stirred at 120° C. for 3.5 h. The solvent was evaporated off under reduced pressure. The residue was purified by flash chromatography (RediSep® Silica gel column, 40 g, EtOAc/n-hexane, isocratic 2:8) to afford 5-bromo-6-(tetrahydro-2h-pyran-4-yloxy)-N-(4-(trifluoromethoxy)phenyl)nicotinamide, of which (25 mg, 0.054 mmol) together with pyrimidin-5-ylboronic acid (30 mg, 0.160 mmol), Pd(Ph3P)4 (10 mg, 8.13 μmol) K3PO4 (35 mg, 0.163 mmol) and toluene (0.4 mL) was stirred at 110° C. for 10 h under an argon atmosphere. The cooled RM was diluted with MeOH, filtered through a cartridge of PL-Thiol MP-Resin, and the filtrate was evaporated to dryness under reduced pressure. The residue was purified by preparative SFC (Column 4-EP; gradient 7% to 12% in 6 min.) and lyophilized to afford an off-white powder. UPLC-MS (Condition 2) tR=1.06 min, m/z=461.1 [M+H]+; 1H-NMR (600 MHz, DMSO-d6) δ ppm 1.61-1.75 (m, 2H) 2.04 (m, J=10.00 Hz, 2H) 3.54 (m, J=8.80, 8.80 Hz, 2H) 3.70-3.80 (m, 2H) 5.37-5.47 (m, 1H) 7.39 (d, J=8.47 Hz, 2H) 7.87 (d, J=9.03 Hz, 2H) 8.50 (s, 1H) 8.82 (s, 1H) 9.15 (s, 2H) 9.22 (s, 1H) 10.45 (s, 1H).

Provenance & Evidence