Sodium bis(trimethylsilyl)amide → methyl 2''-{[(4S,5R)-5-(3-fluorophenyl)-4-methyl-2-oxo-1,3-oxazolidin-3-yl]methyl}-4'-methoxy-2-methyl-4''-(trifluoromethyl)-1,1':3',1''-terphenyl-4-carboxylate

HRID 607119Notes

Reaction equation

HRID 607119 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C@H:8]2[O:12][C:11](=[O:13])[NH:10][C@H:9]2[CH3:14])[CH:5]=[CH:6][CH:7]=1.C[Si]([N-][Si](C)(C)C)(C)C.[Na+].Br[CH2:26][C:27]1[CH:32]=[C:31]([C:33]([F:36])([F:35])[F:34])[CH:30]=[CH:29][C:28]=1[C:37]1[CH:38]=[C:39]([C:45]2[CH:50]=[CH:49][C:48]([C:51]([O:53][CH3:54])=[O:52])=[CH:47][C:46]=2[CH3:55])[CH:40]=[CH:41][C:42]=1[O:43][CH3:44]>CC(N(C)C)=O>[F:1][C:2]1[CH:3]=[C:4]([C@H:8]2[O:12][C:11](=[O:13])[N:10]([CH2:26][C:27]3[CH:32]=[C:31]([C:33]([F:35])([F:36])[F:34])[CH:30]=[CH:29][C:28]=3[C:37]3[CH:38]=[C:39]([C:45]4[CH:50]=[CH:49][C:48]([C:51]([O:53][CH3:54])=[O:52])=[CH:47][C:46]=4[CH3:55])[CH:40]=[CH:41][C:42]=3[O:43][CH3:44])[C@H:9]2[CH3:14])[CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 2724254Sodium bis(trimethylsilyl)amideHCID 57544358Methyl 2''-(bromomethyl)-4'-methoxy-2-methyl-4''-(trifluoromethyl)-1,1':3',1''-terphenyl-4-carboxylateHCID 67066030(4S,5R)-5-(3-fluorophenyl)-4-methyl-1,3-oxazolidin-2-one

Product 1

HCID 25009328methyl 2''-{[(4S,5R)-5-(3-fluorophenyl)-4-methyl-2-oxo-1,3-oxazolidin-3-yl]methyl}-4'-methoxy-2-methyl-4''-(trifluoromethyl)-1,1':3',1''-terphenyl-4-carboxylate

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent2×

Procedure

To a 0° C. solution of (4S,5R)-5-(3-fluorophenyl)-4-methyl-1,3-oxazolidin-2-one (16.2 mg, 0.0830 mmol) in DMA (1 mL) was added NaHMDS (83 μL, 0.083 mmol). Next, a solution of methyl 2″-(bromomethyl)-4′-methoxy-2-methyl-4″-(trifluoromethyl)-1,1′:3′,1″-terphenyl-4-carboxylate (49 mg, 0.0996 mmol) in DMA (1 mL) was added via cannula. After 5 minutes, the reaction was quenched with saturated NH4Cl solution (10 mL) and diluted with EtOAc (20 ml). The aqueous layer was extracted with EtOAc (20 mL), and the combined organic extracts were washed with brine (10 mL), dried over Na2SO4, filtered, and concentrated. Purification of the residue by flash chromatography on silica gel (5 to 25% EtOAc/hexanes) afforded methyl 2″-{[(4S,5R)-5-(3-fluorophenyl)-4-methyl-2-oxo-1,3-oxazolidin-3-yl]methyl}-4′-methoxy-2-methyl-4″-(trifluoromethyl)-1,1′:3′,1″-terphenyl-4-carboxylate. LCMS=608.2 (M+1)+. 1H NMR (CDCl3, 500 MHz, rotamers present) a 7.94 (d, J=5.9 Hz, 1H), 7.87 (d, J=7.8 Hz, 1H), 7.71-7.61 (m, 2H), 7.41-7.36 (m, 2H), 7.33-7.24 (m, 2H), 7.14-7.12 (m, 1H), 7.07-7.05 (m, 1H), 7.02-6.90 (m, 3H), 5.46 (d, J=8.2 Hz), 5.24 (d, J=8.2 Hz), 4.90 (d, J=15.8 Hz), 4.82 (d, J=15.8 Hz), 4.20 (d, J=15.8 Hz), 3.97 (d, J=15.8 Hz), 3.92 (s, 3H), 3.95 (s, 3H), 3.75-3.69 (m, 1H), 2.36 (s), 2.31 (s), 0.53 (d, J=6.6 Hz), 0.43 (d, J=6.6 Hz).

Workup

  1. customthe reaction was quenched with saturated NH4Cl solution (10 mL)
  2. additiondiluted with EtOAc (20 ml)
  3. extractionThe aqueous layer was extracted with EtOAc (20 mL)
  4. washthe combined organic extracts were washed with brine (10 mL)
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customPurification of the residue by flash chromatography on silica gel (5 to 25% EtOAc/hexanes)

Sources & evidence

ORD record
ord-add8449591f54649a1bdfcf144d6dd1c
Source dataset
uspto-grants-2011_03
Patent number
US07915271B2

Reaction notes

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