Potassium Phosphate, Tribasic → US10023592, Example 292

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-bromo-1-methyl-3-(2,2,2-trifluoroethoxy)pyridin-2-one (50 mg, 0.18 mmol), 2-[2-(2,4-difluorophenoxy)-5-(ethylsulfonylmethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (88 mg, 0.20 mmol), Pd(dppf)Cl2 (11 mg) and K3PO4 (85 mg, 0.40 mmol) in dioxane (5 mL) and water (5 drops) was purged with nitrogen, capped, and heated to 70° C. for 8 h. After the mixture was filtered, the filtrate was concentrated in vacuo and purified by prep-HPLC to afford the title compound (21 mg, 22%) as a white solid. 1H NMR (CDCl3, 400 MHz) δ 7.41 (m, 2H) 7.35 (m, 1H) 7.30 (m, 1H) 7.07-6.96 (m, 2H) 6.92-6.87 (m, 1H) 6.80 (m, 1H), 4.51 (m, 2H) 4.21 (s, 2H) 3.69 (s, 3H) 2.97 (m, 2H) 1.44 (m, 3H). LCMS (M+H)+=518.

Provenance & Evidence