Potassium Phosphate, Tribasic → US10023592, Example 342

Participants

Reaction Conditions

Reaction Steps

A mixture of N-[3-bromo-5-(2,4-difluorophenoxy)phenyl]ethanesulfonamide (70 mg, 0.17 mmol), 1,3-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-one (44 mg, 0.18 mmol), Pd(dppf)Cl2 (12 mg) and K3PO4 (92 mg, 0.42 mmol) in dioxane (1 mL) and water (133 uL) was purged with nitrogen, capped, and heated to 75° C. for 1 h. After the mixture was filtered through a short bed of celite, the filtrate was concentrated in vacuo and purified by silica gel column chromatography using a gradient of MeOH (0 to 10%) in DCM to afford the title compound (69 mg, 94%) as an off-white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.13-1.22 (m, 3H) 2.07 (s, 3H) 3.08-3.20 (m, 2H) 3.50 (s, 3H) 6.65-6.70 (m, 1H) 6.92-6.96 (m, 1H) 7.05-7.10 (m, 1H) 7.12-7.19 (m, 1H) 7.28-7.37 (m, 1H) 7.47-7.55 (m, 1H) 7.56-7.59 (m, 1H) 7.87-7.95 (m, 1H) 9.76-9.94 (m, 1H). LCMS (M+H)+=435.

Provenance & Evidence