Water → {4-[2-(2,4-Dichloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-2-oxo-2H-pyridin-1-yl}-acetic acid methyl ester

HRID 333814Notes

Reaction equation

HRID 333814 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[CH:9]([CH3:23])[C:10]([C:16]1[CH:21]=[CH:20][NH:19][C:18](=[O:22])[CH:17]=1)([OH:15])[C:11]([F:14])([F:13])[F:12].CC([O-])(C)C.[K+].[CH3:30][O:31][C:32](=[O:35])[CH2:33]Br.O>C1COCC1>[CH3:30][O:31][C:32](=[O:35])[CH2:33][N:19]1[CH:20]=[CH:21][C:16]([C:10]([OH:15])([C:11]([F:14])([F:13])[F:12])[CH:9]([C:3]2[CH:4]=[CH:5][C:6]([Cl:8])=[CH:7][C:2]=2[Cl:1])[CH3:23])=[CH:17][C:18]1=[O:22]

Participants

6

Reactant 4

HCID 962WaterHCID 60984Methyl bromoacetateHCID 23665647Potassium tert-butoxideHCID 57421256HCID 57421256, compound

Product 1

HCID 25254607{4-[2-(2,4-Dichloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-2-oxo-2H-pyridin-1-yl}-acetic acid methyl ester

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

4-[2-(2,4-Dichloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-1H-pyridin-2-one (Example 119, 100 mg) was dissolved in THF (10 mL), and treated with t-BuOK (34 mg). After 5 minutes stirring, bromo-acetic acid methyl ester (0.03 mL) was added and the reaction mixture was stirred at 55° C. for 17 h. The reaction mixture was then cooled down to r.t., poured into water (50 mL) and extracted twice with ethyl acetate. The combined organic phases were washed with brine, dried over MgSO4 and concentrated in vacuo. The residue was purified by flash chromatography (10 g silica gel, ethyl acetate/heptane 30:70) to give the title compound as colorless waxy solid (49 mg). MS (m/e)=438.1 (MH+).

Workup

  1. stirringthe reaction mixture was stirred at 55° C. for 17 h
  2. extractionextracted twice with ethyl acetate
  3. washThe combined organic phases were washed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash chromatography (10 g silica gel, ethyl acetate/heptane 30:70)

Sources & evidence

ORD record
ord-aa760b68de0c41ea8517203680d21086
Source dataset
uspto-grants-2014_11
Patent number
US08883786B2

Reaction notes

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