反应详情

To a Parshaker flask were added benzyl 4-((S)-1-((4-((R)-4-((S)-1-(tert-butoxy)ethyl)-2-oxooxazolidin-3-yl)-5-fluoropyrimidin-2-yl)amino)ethyl)piperidine-1-carboxylate (850 mg, 1.56 mmole) and 20% Pd(OH)2 in actived carbon (880 mg, 1.25 mmole), then was added MeOH (100 mL) under nitrogen gas. The reaction mixture was shaken under 50 psi hydrogen overnight. The reaction mixture was filtered through a celite. The celite cake was washed with MeOH and the filtrate was concentrate in vacuo. The resulting crude product was purified by flash column chromatography (basic alumina, 40 g) eluting w/0-20% MeOH/DCM to afford the title product as a white solid (230 mg). 1H NMR (400 MHz, CD2Cl2) 8.18 (d, J=2.87 Hz, 1H), 5.15 (br s, 1H), 4.71-4.63 (m, 1H), 4.56-4.47 (m, 1H), 4.47-4.34 (m, 2H), 4.25-4.14 (m, 1H), 3.96-3.82 (m, 1H), 3.16 (d, J=12.34 Hz, 2H), 2.67-2.54 (m, 2H), 1.85-1.66 (m, 2H), 1.64-1.52 (m, 1H), 1.40-1.26 (m, 2H), 1.20 (d, J=6.60 Hz, 3H), 1.18 (s, 9H), 1.10 (d, J=6.46 Hz, 3H). HRMS(C) tR=2.36 min; MS m/z 410.2571 (M+H)+

1. filtrationThe reaction mixture was filtered through a celite
2. washThe celite cake was washed with MeOH
3. concentrationthe filtrate was concentrate in vacuo
4. customThe resulting crude product was purified by flash column chromatography (basic alumina, 40 g)
5. washeluting w/0-20% MeOH/DCM