Ethyl Acetate → 4-(2-{(3,5-Bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyric acid

HRID 603997Notes

Reaction equation

HRID 603997 reaction equation
[F:1][C:2]([F:49])([F:48])[C:3]1[CH:4]=[C:5]([CH:41]=[C:42]([C:44]([F:47])([F:46])[F:45])[CH:43]=1)[CH2:6][N:7]([CH2:23][C:24]1[CH:29]=[C:28]([C:30]([F:33])([F:32])[F:31])[CH:27]=[CH:26][C:25]=1[N:34]([CH2:37][CH2:38][CH2:39][CH3:40])[CH2:35][CH3:36])[C:8]1[N:13]=[CH:12][C:11]([O:14][CH2:15][CH2:16][CH2:17][C:18]([O:20]CC)=[O:19])=[CH:10][N:9]=1.[OH-].[Na+].C(OCC)(=O)C>C(O)C>[F:49][C:2]([F:1])([F:48])[C:3]1[CH:4]=[C:5]([CH:41]=[C:42]([C:44]([F:45])([F:46])[F:47])[CH:43]=1)[CH2:6][N:7]([CH2:23][C:24]1[CH:29]=[C:28]([C:30]([F:33])([F:32])[F:31])[CH:27]=[CH:26][C:25]=1[N:34]([CH2:37][CH2:38][CH2:39][CH3:40])[CH2:35][CH3:36])[C:8]1[N:9]=[CH:10][C:11]([O:14][CH2:15][CH2:16][CH2:17][C:18]([OH:20])=[O:19])=[CH:12][N:13]=1

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 14798Sodium HydroxideHCID 86626756Ethyl 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyrate

Product 1

HCID 866267574-(2-{(3,5-Bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyric acidYield 65.3%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

Ethyl 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyrate (110 mg) is dissolved in ethanol (2 ml) and thereto is added a 2N-aqueous sodium hydroxide solution (233 μl) and the mixture is stirred at room temperature overnight. Thereto are added ethyl acetate and a saturated aqueous citric acid solution, and the mixture is separated and the organic layer is washed with a saturated brine, dried over magnesium sulfate and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=9:1 to 7:3) to give 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyric acid (69 mg). The resulting carboxylic acid is dissolved in ethanol (0.2 mL) and thereto is added 2N-aqueous sodium hydroxide solution (50 μl) and the reaction solution is concentrated under reduced pressure to give 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyric acid sodium salt (70 mg). MS (m/z): 679 [M−Na]−

Workup

  1. customa saturated aqueous citric acid solution, and the mixture is separated
  2. washthe organic layer is washed with a saturated brine
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=9:1 to 7:3)

Sources & evidence

ORD record
ord-63a80eff3a8d42cf926cc7423a3e63f6
Source dataset
uspto-grants-2011_03
Patent number
US07906517B2

Reaction notes

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