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 → (R)-4-((S)-1-(tert-butoxy)ethyl)-3-(5-fluoro-2-(((S)-1-(piperidin-4-yl)ethyl)amino)pyrimidin-4-yl)oxazolidin-2-one

HRID 57470Notes

Reaction equation

HRID 57470 reaction equation
[C:1]([O:5][C@H:6]([C@H:8]1[CH2:12][O:11][C:10](=[O:13])[N:9]1[C:14]1[C:19]([F:20])=[CH:18][N:17]=[C:16]([NH:21][C@H:22]([CH:24]2[CH2:29][CH2:28][N:27](C(OCC3C=CC=CC=3)=O)[CH2:26][CH2:25]2)[CH3:23])[N:15]=1)[CH3:7])([CH3:4])([CH3:3])[CH3:2].[H][H]>[OH-].[OH-].[Pd+2].CO>[C:1]([O:5][C@H:6]([C@H:8]1[CH2:12][O:11][C:10](=[O:13])[N:9]1[C:14]1[C:19]([F:20])=[CH:18][N:17]=[C:16]([NH:21][C@H:22]([CH:24]2[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]2)[CH3:23])[N:15]=1)[CH3:7])([CH3:3])([CH3:4])[CH3:2]

Participants

5

Reactant 2

HCID 90415205benzyl 4-((S)-1-((4-((R)-4-((S)-1-(tert-butoxy)ethyl)-2-oxooxazolidin-3-yl)-5-fluoropyrimidin-2-yl)amino)ethyl)piperidine-1-carboxylateHCID 178418361HCID 178418361, compound

Product 1

HCID 90417340(R)-4-((S)-1-(tert-butoxy)ethyl)-3-(5-fluoro-2-(((S)-1-(piperidin-4-yl)ethyl)amino)pyrimidin-4-yl)oxazolidin-2-oneYield 36%

Reagents, catalysts & solvents 2

HCID 9942167Palladium hydroxideCatalystHCID 887MethanolSolvent

Procedure

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)+

Workup

  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

Sources & evidence

ORD record
ord-6f6b9a752f8b40139b9b7008034d08b0
Source dataset
uspto-grants-2016_09
Patent number
US09434719B2

Reaction notes

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