Hydrochloric Acid → 3-[3-ethoxy-1-[6-(2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-yl]propionic acid

HRID 350251Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 350251
[CH2:1]([O:3][C:4]1[C:8]([CH2:9][CH2:10][C:11]([O:13]CC)=[O:12])=[CH:7][N:6]([CH2:16][C:17]2[CH:18]=[N:19][C:20]([O:23][CH2:24][C:25]3[N:26]=[C:27]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[S:28][CH:29]=3)=[CH:21][CH:22]=2)[N:5]=1)[CH3:2].[OH-].[Na+].O1CCCC1.Cl>C(O)C>[CH2:1]([O:3][C:4]1[C:8]([CH2:9][CH2:10][C:11]([OH:13])=[O:12])=[CH:7][N:6]([CH2:16][C:17]2[CH:18]=[N:19][C:20]([O:23][CH2:24][C:25]3[N:26]=[C:27]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[S:28][CH:29]=3)=[CH:21][CH:22]=2)[N:5]=1)[CH3:2]

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 69423259ethyl 3-[3-ethoxy-1-[6-(2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-yl]propionate

Produkt 1

HCID 694240343-[3-ethoxy-1-[6-(2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-yl]propionic acidAusbeute 92,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

After a mixture of ethyl 3-[3-ethoxy-1-[6-(2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-yl]propionate (655 mg), 1N aqueous sodium hydroxide solution (3 ml), tetrahydrofuran (6 ml) and ethanol (6 ml) was stirred at room temperature for 2 hours, 1 N hydrochloric acid (3 ml) was added to the mixture, and then the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous sodium chloride solution, dried (MgSO4) and concentrated. The resulting colorless crystals were collected by filtration to obtain 3-[3-ethoxy-1-[6-(2-phenyl-4-thiazolylmethoxy)-3-pyridylmethyl]-1H-pyrazol-4-yl]propionic acid (569 mg, yield: 92%). This was recrystallized from ethanol-hexane. Melting point: 121–122° C.

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated aqueous sodium chloride solution
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. filtrationThe resulting colorless crystals were collected by filtration

Quellen und Nachweise

ORD-Eintrag
ord-b81f798ef7e045bca71dc465b054ccbd
Quelldatensatz
uspto-grants-2007_02
Patentnummer
US07179823B1

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