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Trifluoroacetic acid → 2,2-Difluoro-N-((1S,2R)-1-fluoromethyl-2-hydroxy-2-{4-[6-(2,2,2-trifluoro-1-methylamino-ethyl)-pyridin-3-yl]-phenyl}-ethyl)-acetamide

HRID 525569
Notes
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Reaction equation

HRID 525569 reaction equation
[F:1][CH:2]([F:33])[C:3]([N:5]1[C@H:9]([CH2:10][F:11])[C@@H:8]([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[CH:19]=[N:20][C:21]([CH:24]([NH:29][CH3:30])[C:25]([F:28])([F:27])[F:26])=[CH:22][CH:23]=3)=[CH:14][CH:13]=2)[O:7]C1(C)C)=[O:4].FC(F)(F)C(O)=O>C(Cl)Cl>[F:33][CH:2]([F:1])[C:3]([NH:5][C@H:9]([CH2:10][F:11])[C@H:8]([OH:7])[C:12]1[CH:13]=[CH:14][C:15]([C:18]2[CH:19]=[N:20][C:21]([CH:24]([NH:29][CH3:30])[C:25]([F:28])([F:26])[F:27])=[CH:22][CH:23]=2)=[CH:16][CH:17]=1)=[O:4]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 866954492,2-Difluoro-1-((4S,5R)-4-fluoromethyl-2,2-dimethyl-5-{4-[6-(2,2,2-trifluoro-1-methylamino-ethyl)-pyridin-3-yl]-phenyl}-oxazolidin-3-yl) ethanone

Product 1

HCID 866954512,2-Difluoro-N-((1S,2R)-1-fluoromethyl-2-hydroxy-2-{4-[6-(2,2,2-trifluoro-1-methylamino-ethyl)-pyridin-3-yl]-phenyl}-ethyl)-acetamideYield 27.4%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Procedure

To a solution of 2,2-Difluoro-1-((4S,5R)-4-fluoromethyl-2,2-dimethyl-5-{4-[6-(2,2,2-trifluoro-1-methylamino-ethyl)-pyridin-3-yl]-phenyl}-oxazolidin-3-yl) ethanone (0.12 g, 0.235 mmol) in CH2Cl2 (2 mL) is added trifluroacetic acid (0.5 mL) at 0° C. then is stirred to room temperature for 2 hours. Reaction solvent evaporated in vacuo then diluted with sodium bicarbonate solution and extract with ethyl acetate. Organic layer is dried over sodium sulphate, solvent is evaporated in vacuo and purified by combiflash eluting in 5% Methanol in CH2Cl2 to afford the title compound (0.028 g). 1H-NMR (400 MHz, DMSO) δ: 2.25 (d, J=5.84 Hz, 3H), 3.00-3.04 (m, 1H), 4.31-4.35 (m, 1.5H), 4.41-4.46 (m, 1.5H), 4.55-4.56 (m, 0.5H), 4.65-4.68 (m, 0.5H), 4.90 (m, 1H), 5.93 (d, J=4.36 Hz, 1H), 6.19 (d, J=53.72 Hz, 1H), 7.46 (d, J=8.32 Hz, 2H), 7.95-7.98 (dd, J1=1.96HzHz, J2=8.32 Hz, 1H), 8.03 (d, J=8.32 Hz, 1H), 8.06 (d, J=8.48 Hz, 2H), 8.71 (d, J=1.88 Hz, 1H), 8.84 (d, J=8.72 Hz, 1H). LC-MS (m/z): [M+H]=436.0.

Workup

  1. customReaction solvent
  2. customevaporated in vacuo
  3. additionthen diluted with sodium bicarbonate solution
  4. extractionextract with ethyl acetate
  5. dry with materialOrganic layer is dried over sodium sulphate, solvent
  6. customis evaporated in vacuo
  7. custompurified by combiflash
  8. washeluting in 5% Methanol in CH2Cl2

Sources & evidence

ORD record
ord-2d34b7b157ae473d8aced4e7e033b863
Source dataset
uspto-grants-2016_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09340564B2

Reaction notes

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