Hydrochloric Acid → [rac]-(6-{1-[4-Methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-ethoxy}-indol-1yl)-acetic acid

HRID 1767873

Reaktionsgleichung

Reaktionsgleichung von HRID 1767873
C([O:5][C:6](=[O:36])[CH2:7][N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[C:14]([O:17][CH:18]([C:20]3[S:24][C:23]([C:25]4[CH:30]=[CH:29][C:28]([C:31]([F:34])([F:33])[F:32])=[CH:27][CH:26]=4)=[N:22][C:21]=3[CH3:35])[CH3:19])[CH:15]=2)[CH:10]=[CH:9]1)(C)(C)C.[OH-].[Na+].Cl>C1COCC1.CO>[CH3:35][C:21]1[N:22]=[C:23]([C:25]2[CH:26]=[CH:27][C:28]([C:31]([F:33])([F:34])[F:32])=[CH:29][CH:30]=2)[S:24][C:20]=1[CH:18]([O:17][C:14]1[CH:15]=[C:16]2[C:11]([CH:10]=[CH:9][N:8]2[CH2:7][C:6]([OH:36])=[O:5])=[CH:12][CH:13]=1)[CH3:19]

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 69279692[Rac]-(6-{1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-ethoxy}-indol-1-yl)-acetic acid tert-butyl ester

Produkt 1

HCID 11453952[rac]-(6-{1-[4-Methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-ethoxy}-indol-1yl)-acetic acidAusbeute 90 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 21899815MeOH tetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of [rac]-(6-{1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-ethoxy}-indol-1-yl)-acetic acid tert-butyl ester (30 mg, 58 μmol) in THF/methanol 2/1 (4.5 ml) was added a 1 N aqueous NaOH solution (1.5 ml). The reaction mixture was stirred for 14 h at ambient temperature, neutralized with 1 N aqueous HCl solution under ice cooling and concentrated under reduced pressure. The residue was dissolved in 1 N HCl/ice water 1/1 and ethyl acetate, the layers were separated and the aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with ice water/brine 1/1, dried over sodium sulfate and the solvent was evaporated in vacuo to give the title compound (24 mg, 52 μmol, 90%) as light yellow oil.

Aufarbeitung

  1. concentrationconcentrated under reduced pressure
  2. dissolutionThe residue was dissolved in 1 N HCl/ice water 1/1
  3. customethyl acetate, the layers were separated
  4. extractionthe aqueous layer was extracted with ethyl acetate
  5. washThe combined organic layers were washed with ice water/brine 1/1
  6. dry with materialdried over sodium sulfate
  7. customthe solvent was evaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-853761412f224932b926cb5c22a2da10
Quelldatensatz
uspto-grants-2007_06
Patentnummer
US07235572B2

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