反应详情

To a solution of (R)-3-((S)-2-(4-fluoro-3,5-dimethylbenzyl)-6-(4-fluoro-3-methylbenzyloxy)hexanoyl)-4-benzyloxazolidin-2-one (0.040 g, 0.0728 mmol) in 2.5 mL of THF/MeOH/50% NH2OH—H2O (2:2:1), KCN (0.001 g, 0.015 mmol) was added. After stirring at room temperature for overnight, the reaction mixture was acidified with concentrated HCl to pH=2 and filtered. The filtrate was purified by RP-HPLC eluting with 20-100% acetonitrile (0.025% TFA)/water (0.025% TFA) to give the title compound as an off-white solid (0.005 g, 23% yield). LC-MS: tR=9.6 min, m/z 406 (M+H)+; 1H NMR (300 MHz, CD3OD) δ 1.28-1.51 (m, 4H), 1.52-1.70 (m, 2H), 2.18 (s, 6H), 2.25 (s, 3H), 2.26-2.33 (m, 1H), 2.52-2.63 (m, 1H), 2.68-2.79 (m, 1H), 3.44 (t, J=6.30 Hz, 2H), 4.40 (s, 2H), 6.81 (d, J=7.03 Hz, 2H), 6.97 (t, J=9.08 Hz, 1H), 7.09-7.15 (m, 1H), 7.18 (d, J=7.32 Hz, 1H).

1. filtrationfiltered
2. customThe filtrate was purified by RP-HPLC
3. washeluting with 20-100% acetonitrile (0.025% TFA)/water (0.025% TFA)