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Sodium Carbonate → 1-((4R,5R)-5-{4-[6-(1-Benzylamino-2,2,2-trifluoro-ethyl)-pyridin-3-yl]-phenyl}-4-fluoromethyl-2,2-dimethyl-oxazolidin-3-yl)-2,2-difluoro-ethanone

HRID 1520494
Notes
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Reaction equation

HRID 1520494 reaction equation
[CH2:1]([NH:8][CH:9]([C:14]1[CH:19]=[CH:18][C:17](Br)=[CH:16][N:15]=1)[C:10]([F:13])([F:12])[F:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[F:21][CH:22]([F:49])[C:23]([N:25]1[C@H:29]([CH2:30][F:31])[C@@H:28]([C:32]2[CH:37]=[CH:36][C:35](B3OC(C)(C)C(C)(C)O3)=[CH:34][CH:33]=2)[O:27][C:26]1([CH3:48])[CH3:47])=[O:24].C([O-])([O-])=O.[Na+].[Na+]>C1(C)C=CC=CC=1.C(O)C.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:1]([NH:8][CH:9]([C:14]1[N:15]=[CH:16][C:17]([C:35]2[CH:36]=[CH:37][C:32]([C@H:28]3[O:27][C:26]([CH3:48])([CH3:47])[N:25]([C:23](=[O:24])[CH:22]([F:49])[F:21])[C@H:29]3[CH2:30][F:31])=[CH:33][CH:34]=2)=[CH:18][CH:19]=1)[C:10]([F:13])([F:12])[F:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 866954142,2-difluoro-1-((4S,5R)-4-(fluoromethyl)-2,2-dimethyl-5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)oxazolidin-3-yl)ethanoneHCID 86695446Benzyl-[1-(5-bromo-pyridin-2-yl)-2,2,2-trifluoro-ethyl]-amine

Product 1

HCID 866954451-((4R,5R)-5-{4-[6-(1-Benzylamino-2,2,2-trifluoro-ethyl)-pyridin-3-yl]-phenyl}-4-fluoromethyl-2,2-dimethyl-oxazolidin-3-yl)-2,2-difluoro-ethanone
Yield 92.8%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 86587398Ethanol toluene waterSolvent

Procedure

To a stirred solution of Benzyl-[1-(5-bromo-pyridin-2-yl)-2,2,2-trifluoro-ethyl]-amine (0.15 g, 0.43 mmol) and 2,2-Difluoro-1-{(4S,5R)-4-fluoromethyl-2,2-dimethyl-5-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-oxazolidin-3-yl}-ethanone (0.18 g, 0.43 mmol) in toluene:ethanol:water (1:1:1; 7:7:7 mL) is added Na2CO3 (0.11 g, 1.08 mmol) at room temperature. Resulting reaction mixture is degassed with nitrogen for 30 minutes then added Pd(PPh3)4 (0.05 g, 0.043 mmol) and mixture is heated to 80° C. for 3 hours. Reaction mixture is concentrated in vacuo and crude material is purified by combi-flash eluting in 20% Ethyl acetate in Hexane to afford the title compound (0.22 g). 1H NMR (400 MHz, DMSO) δ: 1.52 (s, 3H), 1.60 (s, 3H), 3.59-3.69 (m, 2H), 3.73-3.78 (m, 1H), 4.47-4.51 (m, 0.5H), 4.55-4.59 (m, 0.5H), 4.66-4.72 (m, 1H), 4.75-4.79 (m, 0.5H), 4.80-4.93 (m, 0.5H), 5.28 (d, J=3.68 Hz 1H), 6.65 (t, J=51.92 Hz, 1H) 7.23-7.24 (m, 2H), 7.26-7.31 (m, 3H), 7.56-7.62 (m, 3H), 7.75 (d, J=8.16 Hz, 1H), 8.06 (s, 1H), 8.16 (d, J=8.32 Hz 1H), 8.73 (s, 1H). LC-MS (m/z): [M+H]=552.1.

Workup

  1. customResulting
  2. customreaction mixture
  3. customis degassed with nitrogen for 30 minutes
  4. customReaction mixture
  5. concentrationis concentrated in vacuo and crude material
  6. customis purified by combi-flash
  7. washeluting in 20% Ethyl acetate in Hexane

Sources & evidence

ORD record
ord-37e2d33d214c4e669a6b8c6960322f15
Source dataset
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09073894B2

Reaction notes

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