To a solution of (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-(2-chloro-4-fluorobenzyl)-4-methyl-1,3-oxazolidin-2-one (100 mg, 0.22 mmol) in 1,4-dioxane (1 mL) was added (4-fluoro-5-isopropyl-2-methoxyphenyl)boronic acid (55.8 mg, 0.26 mmol), palladium(II) acetate (10 mg, 20 mol %), potassium hydroxide aqueous solution (147 μL, 3M, 2 eq.) and tri-tert-butylphosphine (13.4 mg, 0.066 mmol, 30 mol % as a 10% w/w hexane solution). The resulting reaction mixture was N2 purged and sealed in a microwave vessel. The vessel was subject to microwave irradiation at 140° C. for 40 min. LC-MS indicated the formation of desired product. It was quenched with water (50 mL). Volatiles were evaporated. The resulting mixture was extracted with EtOAc. The combined extracts were dried over Na2SO4, filtered and concentrated in vacuo to an oil. The titled compound was obtained after two purifications with silica gel and one reversed phase prep-HPLC. LC-MS:588.25 (M+1)+.
