Potassium Phosphate, Tribasic → HCID 118195395, compound

Participants

Reaction Conditions

Reaction Steps

(R)-5-Bromo-N-(4-(chlorodifluoromethoxy)phenyl)-6-(3-hydroxypyrrolidin-1-yl)nicotinamide (Stage 171.1, 70 mg, 0.151 mmol), 4-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (49.7 mg, 0.227 mmol), Pd(Ph3P)4 (17.48 mg, 0.015 mmol) and K3PO4 (96 mg, 0.454 mmol) were added to a vial, flushed with argon, treated with toluene (1 mL), and stirred at 110° C. for 2 h followed by 4 h at 130° C. Dioxane (1 mL) was added and the RM was stirred for an additional 3 days at 130° C. The RM was diluted with dioxane and filtered on a pad of Hyflo®, followed by Si-Thiol scavenger treatment. The solvent was evaporated off under reduced pressure and the crude product was purified by preparative SFC (Column Diol, from 20% to 25% in 6 min). The purified product was lyophilized in water/min. vol. MeCN to afford the title product as an off-white powder. UPLC-MS (Condition 3), tR=0.97 min, m/z=475.1/477.1 [M+H]+; 1H-NMR (600 MHz, DMSO-d6) δ ppm 1.62-1.89 (m, 2H) 2.02/2.14 (s, 3H) 2.70-3.35 (m, 4H) 4.09-4.24 (m, 1H) 4.79-4.96 (m, 1H) 7.27-7.42 (m, J=8.66 Hz, 3H) 7.86 (d, J=7.91 Hz, 2H) 7.91-8.00 (m, 1H) 8.41-8.61 (m, 2H) 8.77 (br. s, 1H) 10.11-10.19 (m, 1H).

Provenance & Evidence