Sodium Bicarbonate → HCID 58102384, compound

Participants

Reaction Steps

To a solution of 5-bromo-1-(2-hydroxy-2-methylpropyl)pyridin-2(1H)-one (20 mg, 81.3 mmol) in DME (6 mL) was added Pd(PPh3)4 (10 mg) under nitrogen. The mixture was stirred for 1 h at rt, and a solution of (S)-6-(2-hydroxy-2-methylpropyl)-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-one (38.95 mg, 81.3 mmol) in EtOH (2 mL) and satd aq NaHCO3 (2 mL) were added. The resulting mixture was stirred at 100° C. for 2 h, quenched with water, and extracted with EtOAc. The combined organic layer was dried over anhydrous Na2SO4 and concentrated to give the crude product, which was purified by preparative TLC and preparative HPLC to afford (S)-6-(2-hydroxy-2-methylpropyl)-3-((S)-1-(4-(1-(2-hydroxy-2-methylpropyl)-6-oxo-1,6-dihydropyridin-3-yl)phenyl)ethyl)-6-phenyl-1,3-oxazinan-2-one (6.5 mg, 15.5%). LC-MS Method 2 tR=0.99 min, m/z=519; 1H NMR (CDCl3): δ 7.60-7.57 (d, 1H), 7.43 (s, 1H), 7.36-7.26 (m, 5H), 7.15 (d, 2H), 7.01 (d, 2H), 6.70 (d, 1H), 2.85 (m, 1H), 5.69-5.66 (m, 1H), 4.13-4.09 (s, 2H), 4.05-3.98 (s, 1H), 2.89-2.86 (m, 1H), 2.44-2.36 (m, 1H), 2.28-2.16 (m, 5H), 1.58-1.53 (d, 3H), 1.33-1.30 (s, 6H), 1.19 (s, 3H), 1.12 (s, 3H).

Provenance & Evidence