Cesium carbonate → (R)-4-((S)-1-(tert-butoxy)ethyl)-3-(2-(((S)-1-(1-(4-chloro-3-(trifluoromethoxy)phenyl)piperidin-4-yl)ethyl)amino)-5-fluoropyrimidin-4-yl)oxazolidin-2-one

HRID 57471Notes

Reaction equation

HRID 57471 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][NH:27][CH2:26][CH2:25]2)[CH3:23])[N:15]=1)[CH3:7])([CH3:4])([CH3:3])[CH3:2].Br[C:31]1[CH:36]=[CH:35][C:34]([Cl:37])=[C:33]([O:38][C:39]([F:42])([F:41])[F:40])[CH:32]=1.C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1.C([O-])([O-])=O.[Cs+].[Cs+]>C1(C)C=CC=CC=1.CC([O-])=O.CC([O-])=O.[Pd+2]>[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:31]3[CH:36]=[CH:35][C:34]([Cl:37])=[C:33]([O:38][C:39]([F:41])([F:42])[F:40])[CH:32]=3)[CH2:26][CH2:25]2)[CH3:23])[N:15]=1)[CH3:7])([CH3:3])([CH3:4])[CH3:2]

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 227302024-Bromo-1-chloro-2-(trifluoromethoxy)benzeneHCID 90417340(R)-4-((S)-1-(tert-butoxy)ethyl)-3-(5-fluoro-2-(((S)-1-(piperidin-4-yl)ethyl)amino)pyrimidin-4-yl)oxazolidin-2-one

Product 1

HCID 90415603(R)-4-((S)-1-(tert-butoxy)ethyl)-3-(2-(((S)-1-(1-(4-chloro-3-(trifluoromethoxy)phenyl)piperidin-4-yl)ethyl)amino)-5-fluoropyrimidin-4-yl)oxazolidin-2-oneYield 72.2%

Reagents, catalysts & solvents 2

HCID 167845palladium(II) acetateCatalystHCID 1140TolueneSolvent

Procedure

A cloudy solution of (R)-4-((S)-1-(tert-butoxy)ethyl)-3-(5-fluoro-2-(((S)-1-(piperidin-4-yl)ethyl)amino)pyrimidin-4-yl)oxazolidin-2-one (32 mg, 0.078 mmol), 4-bromo-1-chloro-2-(trifluoromethyoxy)benzene (26 mg, 0.094 mmol), Pd(OAc)2 (2 mg, 8 umol), BINAP (5 mg, 8 umol), and Cs2CO3 (51 mg, 0.156 mmol) in 6 mL toluene was heated at 90° C. for 3 days. The mixture was cooled to room temperature, and filtered through Celite. The celite cake was rinsed with 5 mL EtOAc. The filtrate was poured into 5 mL water. Organic layer was separated, and the aqueous was further extracted with EtOAc (5 mL). The organic extracts were combined and concentrated by rotary evaporation. The crude was dissolved in a mixture of MeOH (1 mL) and DMSO (1 mL) and purified by reverse phase HPLC. Selected fractions were collected and concentrated by rotary evaporation to afford the title product as a colorless oil (34 mg). (400 MHz, CD2Cl2) b 8.19 (d, J=2.95 Hz, 1H), 7.31 (d, J=8.85 Hz, 1H), 6.87-6.80 (m, 2H), 5.05 (br s, 1H), 4.73-4.63 (m, 1H), 4.56-4.44 (m, 2H), 4.25-4.13 (m, 1H), 4.01-3.88 (m, 1H), 3.79-3.69 (m, 2H), 2.82-2.69 (m, 2H), 2.00-1.79 (m, 2H), 1.68-1.56 (m, 1H), 1.54-1.36 (m, 2H), 1.23 (d, J=6.87 Hz, 3H), 1.15 (s, 9H), 1.09 (d, J=6.44 Hz, 3H), HRMS(C) tR=5.61 min; MS m/z 604.2328 (M+H)+

Workup

  1. filtrationfiltered through Celite
  2. washThe celite cake was rinsed with 5 mL EtOAc
  3. additionThe filtrate was poured into 5 mL water
  4. customOrganic layer was separated
  5. extractionthe aqueous was further extracted with EtOAc (5 mL)
  6. concentrationconcentrated by rotary evaporation
  7. dissolutionThe crude was dissolved in a mixture of MeOH (1 mL) and DMSO (1 mL)
  8. custompurified by reverse phase HPLC
  9. customSelected fractions were collected
  10. concentrationconcentrated by rotary evaporation

Sources & evidence

ORD record
ord-af892a30e54f4c638235e703e4a4ed88
Source dataset
uspto-grants-2016_09
Patent number
US09434719B2

Reaction notes

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