Trifluoroacetic acid → (S)-2-Amino-1-[5-(4-trifluoromethoxy-phenyl)-1,3,4-oxadiazol-2-yl]-butan-1-ol

HRID 1455588Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1455588
C(OC(=O)[NH:7][C@H:8]([CH:11]([OH:28])[C:12]1[O:13][C:14]([C:17]2[CH:22]=[CH:21][C:20]([O:23][C:24]([F:27])([F:26])[F:25])=[CH:19][CH:18]=2)=[N:15][N:16]=1)[CH2:9][CH3:10])(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[NH2:7][CH:8]([CH2:9][CH3:10])[C@@H:11]([C:12]1[O:13][C:14]([C:17]2[CH:18]=[CH:19][C:20]([O:23][C:24]([F:25])([F:27])[F:26])=[CH:21][CH:22]=2)=[N:15][N:16]=1)[OH:28]

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 57535328((S)-1-{hydroxy-[5-(4-trifluoromethoxy-phenyl)-1,3,4-oxadiazol-2-yl]-methyl}-propyl)-carbamic acid tert-butyl ester

Produkt 1

HCID 68823850(S)-2-Amino-1-[5-(4-trifluoromethoxy-phenyl)-1,3,4-oxadiazol-2-yl]-butan-1-olAusbeute 96 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

((S)-1-{hydroxy-[5-(4-trifluoromethoxy-phenyl)-1,3,4-oxadiazol-2-yl]-methyl}-propyl)-carbamic acid tert-butyl ester (0.54 mmol, 0.225 g) is dissolved in dichloromethane (9 mL) and treated with trifluoroacetic acid (1 mL). The reaction mixture is stirred for four hours. The solvents are evaporated under reduced pressure. The residue is re-dissolved in dichloromethane (20 mL) and Silicycle Triamine (5.4 mmol, 1.47 g) is added. The reaction mixture is stirred for 60 h (over the weekend). The reaction mixtures are filtered under suction and the solvents evaporated to give (S)-2-Amino-1-[5-(4-trifluoromethoxy-phenyl)-1,3,4-oxadiazol-2-yl]-butan-1-ol (0.164 g, 96%). MS: m/z=318 (M+H+)

Aufarbeitung

  1. customThe solvents are evaporated under reduced pressure
  2. dissolutionThe residue is re-dissolved in dichloromethane (20 mL)
  3. stirringThe reaction mixture is stirred for 60 h (over the weekend)
  4. customThe reaction mixtures
  5. filtrationare filtered under suction
  6. customthe solvents evaporated

Quellen und Nachweise

ORD-Eintrag
ord-9ebffeec6a3544c2b76d1a905ba2af14
Quelldatensatz
uspto-grants-2009_01
Patentnummer
US07482448B2

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