Potassium Phosphate, Tribasic → 6-chloro-5-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)-N-(4-(trifluoromethoxy)phenyl)nicotinamide

Participants

Reaction Conditions

Reaction Steps

K3PO4 (5.70 g, 26.8 mmol), followed by 1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (3.73 g, 13.42 mmol) and Pd(PPh3)4 (0.517 g, 0.447 mmol) were added to a solution of 6-chloro-5-iodo-N-(4-(trifluoromethoxy)phenyl)nicotinamide (Stage 32.2, 4.0 g, 8.95 mmol) in toluene (45 mL) under an argon atmosphere. The RM was stirred at 80° C. for 5 h, filtered through Hyflo®, washed with EtOAc (100 mL) and the solvent was evaporated off under reduced pressure to give a crude product was purified by flash chromatography (Silica gel column, 80 g, n-hexane/EtOAc from 9:1 to 1:1) and triturated under n-hexane, filtered and dried to afford the title compound as a beige solid. HPLC (Condition 7) tR=7.569 min, UPLC-MS (Condition 3) tR=1.19 min, m/z=466.9 [M+H]+; 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.38-1.67 (m, 3H) 1.81-2.01 (m, 2H) 2.25-2.39 (m, 1H) 3.34-3.46 (m, 1H) 3.74-3.84 (m, 1H) 5.15 (d, J=8.21 Hz, 1H) 6.62 (s, 1H) 7.40 (d, J=8.21 Hz, 2H) 7.69 (s, 1H) 7.88 (d, J=8.99 Hz, 2H) 8.50 (s, 1H) 9.06 (s, 1H) 10.70 (s, 1H).

Provenance & Evidence