Water → HCID 58109235, compound

Participants

Reaction Steps

A mixture of (R/S)-3-((S)-1-(3-hydroxyphenyl)ethyl)-6-methyl-6-phenyl-1,3-oxazinan-2-one (0.0955 g, 0.31 mmol, 1.0 equiv), Cs2CO3 (0.3307 g, 1.01 mmol, 3.3 equiv), and ethyl bromoacetate (0.1468 g, 0.88 mmol, 2.8 equiv) in CH3CN (1.5 mL) was stirred at rt for 3 d. The mixture was diluted with CH2Cl2, treated with H2O (2 mL), dried over Na2SO4. After the solvents were evaporated, the residue was purified by chromatography on silica gel eluted with hexanes/EtOAc to afford 0.1025 g (84%) of ethyl 2-(3-((S)-1-((R/S)-6-methyl-2-oxo-6-phenyl-1,3-oxazinan-3-yl)ethyl)phenoxy)acetate. LC-MS Method 1, tR=1.75 min, m/z=398 (M+1). 1H NMR (CDCl3) 7.40-7.23 (m, 6H), 6.95-6.93 (m, 1H), 6.88 (m, 1H), 6.81-6.78 (m, 1H), 5.76 (q, J=7.1 Hz, 1H), 4.61 (s, 2H), 4.27 (q, J=7.1 Hz, 2H), 2.68-2.65 (m, 2H), 2.28-2.23 (m, 1H), 2.06-1.98 (m, 1H), 1.63 (s, 3H), 1.30 (t, J=7.2 Hz, 3H), 1.26 (d, J=7.3 Hz, 3H).

Provenance & Evidence