1-{[(5-{3-chloro-4-[4-(trifluoromethyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-imidazol-2-yl]phenyl}-4-methylpyridin-2-yl)oxy]methyl}cyclopropanecarboxylic acid → 1-{[(5-{3-chloro-4-[5-(trifluoromethyl)-1H-imidazol-2-yl]phenyl}-4-methylpyridin-2-yl)oxy]methyl}cyclopropanecarboxylic acid

HRID 623924Notes

Reaction equation

HRID 623924 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:25]2[C:26]([CH3:39])=[CH:27][C:28]([O:31][CH2:32][C:33]3([C:36]([OH:38])=[O:37])[CH2:35][CH2:34]3)=[N:29][CH:30]=2)[CH:5]=[CH:6][C:7]=1[C:8]1[N:9](COCC[Si](C)(C)C)[CH:10]=[C:11]([C:13]([F:16])([F:15])[F:14])[N:12]=1>FC(F)(F)C(O)=O.O>[Cl:1][C:2]1[CH:3]=[C:4]([C:25]2[C:26]([CH3:39])=[CH:27][C:28]([O:31][CH2:32][C:33]3([C:36]([OH:38])=[O:37])[CH2:35][CH2:34]3)=[N:29][CH:30]=2)[CH:5]=[CH:6][C:7]=1[C:8]1[NH:12][C:11]([C:13]([F:14])([F:16])[F:15])=[CH:10][N:9]=1

Participants

4

Reactant 1

HCID 679753171-{[(5-{3-chloro-4-[4-(trifluoromethyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-imidazol-2-yl]phenyl}-4-methylpyridin-2-yl)oxy]methyl}cyclopropanecarboxylic acid

Product 1

HCID 574113301-{[(5-{3-chloro-4-[5-(trifluoromethyl)-1H-imidazol-2-yl]phenyl}-4-methylpyridin-2-yl)oxy]methyl}cyclopropanecarboxylic acidYield 55.9%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6422Trifluoroacetic acidSolvent

Procedure

In trifluoroacetic acid (5.0 mL) and water (0.5 mL) was dissolved 1-{[(5-{3-chloro-4-[4-(trifluoromethyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-imidazol-2-yl]phenyl}-4-methylpyridin-2-yl)oxy]methyl}cyclopropanecarboxylic acid (219 mg), and the solution was stirred at room temperature for 5 hours. The reaction mixture was concentrated under reduced pressure, a small amount of tetrahydrofuran was added to the residue, and the mixture was neutralized by 1N aqueous sodium hydroxide solution. Several drops of acetic acid was added to the mixture, the mixture was extracted with ethyl acetate, washed with a saturated brine, and the organic layer was separated and concentrated under reduced pressure. Isopropyl ether was added to the obtained residue, and the precipitated solid was collected by filtration and dried under reduced pressure to obtain 1-{[(5-{3-chloro-4-[5-(trifluoromethyl)-1H-imidazol-2-yl]phenyl}-4-methylpyridin-2-yl)oxy]methyl}cyclopropanecarboxylic acid (95 mg).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. additiona small amount of tetrahydrofuran was added to the residue
  3. additionSeveral drops of acetic acid was added to the mixture
  4. extractionthe mixture was extracted with ethyl acetate
  5. washwashed with a saturated brine
  6. customthe organic layer was separated
  7. concentrationconcentrated under reduced pressure
  8. additionIsopropyl ether was added to the obtained residue
  9. filtrationthe precipitated solid was collected by filtration
  10. customdried under reduced pressure

Sources & evidence

ORD record
ord-2534aaf5764f4130b76992011177a4f6
Source dataset
uspto-grants-2016_04
Patent number
US09302996B2

Reaction notes

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