Potassium Carbonate → HCID 11578027, compound

Participants

Reaction Conditions

Reaction Steps

In a tube was placed (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-{[3′-chloro-4′-fluoro-4-(trifluoromethyl)biphenyl-2-yl]methyl}-4-methyl-1,3-oxazolidin-2-one (Example 146) (30.2 mg, 0.0504 mmol), isopropenylboronic acid (27 mg, 0.31 mmol), 1,1-bis(di-t-butylphosphino)ferrocene palladium chloride (5.5 mg, 8.4×10−3 mmol), THF (350 μL) and 1 M aq. K2CO3 (350 μL). The tube was degassed with nitrogen, sealed, and heated at 100° C. for 5 hours. The reaction was then cooled to room temperature, diluted with EtOAc (50 mL) and washed with water and brine (15 mL each). The organic layer was dried over Na2SO4, filtered, and concentrated. Purification of the residue by flash chromatography on silica gel (0 to 15% EtOAc/hexanes) afforded (4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-3-{[4′-fluoro-3′-isopropenyl-4-(trifluoromethyl)biphenyl-2-yl]methyl}-4-methyl-1,3-oxazolidin-2-one. Rf=0.29 (15% EtOAc/hexanes). LCMS=606.2 (M+1)+. 1H NMR (CDCl3, 500 MHz) δ 7.86 (s, 1H), 7.70 (s, 3H), 7.64 (d, J=8.0 Hz, 1H), 7.42 (d, J=8.0 Hz, 1H), 7.23 (dd, J=7.8, 2.0 Hz, 1H), 7.12-7.17 (m, 2H), 5.54 (d, J=8.0 Hz, 1H), 5.28 (s, 1H), 5.26 (s, 1H), 4.90 (d, J=15.8 Hz, 1H), 4.18 (d, J=15.8 Hz, 1H), 3.78 (m, 1H), 2.16 (s, 3H), 0.47 (d, J=6.7 Hz, 3H).

Provenance & Evidence