HCID 58109558, compound → HCID 59635765, compound

Participants

Reaction Steps

To a stirred solution of (S)-3-((S)-1-(2′,4′-difluorobiphenyl-4-yl)ethyl)-6-(4-fluorophenyl)-6-(2-oxopropyl)-1,3-oxazinan-2-one (0.0303 g, 0.0648 mmol) in THF (5 mL) was added MeMgBr (1.4 M in toluene/THF, 1 mL, 1.4 mmol) at 0° C. The mixture was warmed to it and stirred for 1 h before quenching with satd aq NH4Cl (1 mL). The mixture was diluted with CH2Cl2 and dried over Na2SO4. After the solvent was evaporated under reduced pressure, the residue was purified by preparative HPLC (SunFire™ Prep C18 OBD™ 5 μm 19×50 mm column, 10%→90% CH3CN/H2O, 0.1% CF3COOH over 8 min and then 90% CH3CN/H2O, 0.1% CF3COOH over 2 min, flow rate 20 mL/min) to afford (S)-3-((S)-1-(2′,4′-difluorobiphenyl-4-yl)ethyl)-6-(4-fluorophenyl)-6-(2-hydroxy-2-methylpropyl)-1,3-oxazinan-2-one. LC-MS Method 1 tR=1.91 min, m/z 484 (MH+), 426; 1H NMR (400 MHz, CD3OD) δ 7.36-7.20 (m, 5H), 7.02-6.92 (m, 6H), 5.52 (q, J=7.0 Hz, 1H), 3.05-3.00 (m, 1H), 2.49-2.35 (m, 2H), 2.22-2.15 (m, 1H), 2.06 (s, 2H), 1.48 (d, J=7.0 Hz, 3H), 1.19 (s, 3H), 0.90 (s, 3H); 19F NMR (376 MHz, CD3OD) δ −113.78 (m), −115.82 (m), −117.50 (m).

Provenance & Evidence