Hydrochloric Acid → 3-[4-(2,2-Difluoroethyl)phenyl]-5-[3-(2-methoxyethyl)-1,2,4-oxadiazol-5-yl]piperidine

HRID 220050Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 220050
[F:1][CH:2]([F:28])[CH2:3][C:4]1[CH:9]=[CH:8][C:7]([CH:10]2[CH2:15][CH:14]([C:16]3[O:20][N:19]=[C:18]([CH2:21][CH2:22][O:23][CH3:24])[N:17]=3)[CH2:13][N:12](C(=O)C)[CH2:11]2)=[CH:6][CH:5]=1.Cl>C(O)C.O>[F:28][CH:2]([F:1])[CH2:3][C:4]1[CH:9]=[CH:8][C:7]([CH:10]2[CH2:15][CH:14]([C:16]3[O:20][N:19]=[C:18]([CH2:21][CH2:22][O:23][CH3:24])[N:17]=3)[CH2:13][NH:12][CH2:11]2)=[CH:6][CH:5]=1

Komponenten

5

Edukt 2

HCID 313Hydrochloric AcidHCID 596065701-{3-[4-(2,2-Difluoroethyl)phenyl]-5-[3-(2-methoxyethyl)-1,2,4-oxadiazol-5-yl]piperidin-1-yl}-ethanone

Produkt 1

HCID 596065913-[4-(2,2-Difluoroethyl)phenyl]-5-[3-(2-methoxyethyl)-1,2,4-oxadiazol-5-yl]piperidine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

A solution of 45.0 mg (0.083 mmol, purity 72%) of the compound from Example 60A in ethanol (10.0 ml) was admixed with 69 μl (15 mg, 0.42 mmol) of concentrated hydrochloric acid. Subsequently, the mixture was stirred under reflux for 24 h, and the reaction solution was diluted with water and washed with diethyl ether. The aqueous phase was alkalized and extracted with dichloromethane. The organic phase was dried over magnesium sulphate, filtered and concentrated under reduced pressure. Yield: 36.3 mg (87% of theory, purity 70%)

Aufarbeitung

  1. temperatureunder reflux for 24 h
  2. washwashed with diethyl ether
  3. extractionextracted with dichloromethane
  4. dry with materialThe organic phase was dried over magnesium sulphate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-3dca7b3ef6394ede9ce4ab3abcee90a3
Quelldatensatz
uspto-grants-2012_06
Patentnummer
US08202862B2

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