Triethylamine → HCID 58109139, compound

Participants

Reaction Steps

A mixture of (S)-3-((S)-1-(4-bromophenyl)ethyl)-6-(4-fluorophenyl)-6-(2-hydroxyethyl)-1,3-oxazinan-2-one (0.4300 g, 1.02 mmol), 4-dimethylaminopyridine (0.0783 g, 0.64 mmol), triethylamine (0.8 mL, 5.74 mmol), and tert-butyldimethylsilyl chloride (0.2870 g, 1.90 mmol) in CH2Cl2 was stirred for 16 h at rt. After the solvents were removed in vacuo, the residue was purified by chromatography on silica gel eluted with hexanes/EtOAc to give 0.2856 g of (S)-3-((S)-1-(4-bromophenyl)ethyl)-6-(2-(tert-butyldimethylsilyloxy)ethyl)-6-(4-fluorophenyl)-1,3-oxazinan-2-one as a solid. LC-MS Method 1 tR=2.49 min, m/z 560, 558 (MNa+), 538, 536 (MH+), 494, 492; 1H NMR (400 MHz, CDCl3) δ 7.34-7.25 (m, 4H), 7.10-7.05 (m, 2H), 6.78 (d, J=8.5 Hz, 2H), 5.63 (q, J=7.0 Hz, 1H), 3.84-3.78 (m, 1H), 3.44-3.38 (m, 1H), 2.96-2.90 (m, 1H), 2.78-2.27 (m, 3H), 2.18-2.04 (m, 2H), 1.52 (d, J=7.3 Hz, 3H), 0.87 (s, 9H), 0.02 (s, 3H), 0.00 (s, 3H); 19F NMR (376 MHz, CDCl3) δ −114.99 (m).

Provenance & Evidence