反应详情

A solution of (4S,6S)-6-[3,5-bis(trifluoromethyl)phenyl]-3-{[3-(4-fluoro-5-isopropyl-2-methoxyphenyl)-6-isopropenylpyridin-2-yl]methyl}-4-methyl-1,3-oxazinan-2-one (Example 5, 8.0 mg, 0.011 mmol) in EtOH (2 mL) was charged with hydrogen at 1 atm with catalytic amount of Pd/C. The mixture was stirred at room temperature for 1 h. The mixture was filtered through Celite and concentrated. The title compound was obtained after flash chromatography on silica gel using EtOAc:hexane 10:90 as the elute to afford 4S,6S)-6-[3,5-bis(trifluoromethyl)phenyl]-3-{[3-(4-fluoro-5-isopropyl-2-methoxyphenyl)-6-isopropylpyridin-2-yl]methyl}-4-methyl-1,3-oxazinan-2-one. LCMS=627.2 (M+1)+. 1H NMR (CDCl3, 500 MHz): δ 7.86 (s, 3H), 7.68 (brs, 1H), 7.18 (brs, 1H), 7.14 (br m, 1H), 6.71 (d, J=11.9 Hz, 1H), 5.31-5.27 (m, 2H), 4.31-4.24 (m, 2H), 3.80 (s, 3H), 2.21 (m, 1H), 1.82 (m, 1H), 1.26 (br s, 3H), 1.21 (br m, 12H).

1. filtrationThe mixture was filtered through Celite
2. concentrationconcentrated