Lithium Chloride → (S)-3-(4-(5-fluoro-2-(pyrimidin-2-yl)pyridin-4-yl)phenyl)-5,5-dimethyl-4-phenyloxazolidin-2-one

HRID 525411Notes

Reaction equation

HRID 525411 reaction equation
Br[C:2]1[CH:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([N:14]3[C@@H:18]([C:19]4[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=4)[C:17]([CH3:26])([CH3:25])[O:16][C:15]3=[O:27])=[CH:10][CH:9]=2)[C:5]([F:28])=[CH:4][N:3]=1.C([Sn](CCCC)(CCCC)[C:34]1[N:39]=[CH:38][CH:37]=[CH:36][N:35]=1)CCC.[Cl-].[Li+]>[Cu]I.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.CN(C=O)C>[F:28][C:5]1[C:6]([C:8]2[CH:13]=[CH:12][C:11]([N:14]3[C@@H:18]([C:19]4[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=4)[C:17]([CH3:26])([CH3:25])[O:16][C:15]3=[O:27])=[CH:10][CH:9]=2)=[CH:7][C:2]([C:34]2[N:39]=[CH:38][CH:37]=[CH:36][N:35]=2)=[N:3][CH:4]=1

Participants

7

Reactant 3

HCID 433294Lithium ChlorideHCID 27632512-(Tributylstannyl)pyrimidineHCID 89813900(S)-3-(4-(2-bromo-5-fluoropyridin-4-yl)phenyl)-5,5-dimethyl-4-phenyloxazolidin-2-one

Product 1

HCID 89813820(S)-3-(4-(5-fluoro-2-(pyrimidin-2-yl)pyridin-4-yl)phenyl)-5,5-dimethyl-4-phenyloxazolidin-2-oneYield 20%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
120 °C

Procedure

A microwave vial was charged with (S)-3-(4-(2-bromo-5-fluoropyridin-4-yl)phenyl)-5,5-dimethyl-4-phenyloxazolidin-2-one (0.060 g, 0.136 mmol), 2-(tributylstannyl)pyrimidine (commercially available from Frontier Scientific, Inc., Logan Utah) (0.067 mL, 0.204 mmol), lithium chloride (0.012 g, 0.272 mmol), copper (I) iodide (2.59 mg, 0.014 mmol), and DMF (2.0 mL). Tetrakis(triphenylphosphine)palladium(0) (0.016 g, 0.014 mmol) was added, the system was purged with argon, and the tube was sealed. The resulting mixture was stirred at 120° C. in a microwave for 1 hour. The reaction mixture was then concentrated to afford an orange oil which was purified using column chromatography on silica gel (RediSep 40 g column, gradient elution with 0-10% MeOH-EtOAc) to afford (S)-3-(4-(5-fluoro-2-(pyrimidin-2-yl)pyridin-4-yl)phenyl)-5,5-dimethyl-4-phenyloxazolidin-2-one (0.012 g, 0.027 mmol, 20% yield) as a tan solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 0.93 (s, 3H), 1.66 (s, 3H), 5.53 (s, 1H), 7.10-7.54 (m, 6H), 7.56-7.89 (m, 5H), 8.10-9.41 (m, 3H). m/z (ESI) 441 (M+H)+.

Workup

  1. customthe system was purged with argon
  2. customthe tube was sealed
  3. concentrationThe reaction mixture was then concentrated
  4. customto afford an orange oil which
  5. customwas purified

Sources & evidence

ORD record
ord-00f4f4b4de5a4a84b022863a9faff122
Source dataset
uspto-grants-2016_05
Patent number
US09340549B2

Reaction notes

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