Hydrochloric Acid → HCID 19969579, Verbindung

HRID 974858Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 974858
[OH-].[Na+].[CH2:3]([C:10]1([C:30]([O:32]CC)=[O:31])[NH:15][C:14](=[O:16])[CH:13]([CH2:17][CH:18]([CH3:20])[CH3:19])[N:12]([O:21][CH2:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:11]1=[O:29])[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.Cl.C(OCC)(=O)C>C(O)C.O>[CH2:3]([C:10]1([C:30]([OH:32])=[O:31])[NH:15][C:14](=[O:16])[CH:13]([CH2:17][CH:18]([CH3:20])[CH3:19])[N:12]([O:21][CH2:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:11]1=[O:29])[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 8857Ethyl AcetateHCID 14798Sodium HydroxideHCID 19969576HCID 19969576, Verbindung

Produkt 1

HCID 19969579HCID 19969579, VerbindungAusbeute 99,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

5.3 ml of 1N sodium hydroxide was added to 25 ml of a suspension of 2.32 g of (3RS,6SR)-3-benzyl-1-benzyloxy-3-ethoxycarbonyl-6-isobutylpiperazine-2,5-dione in ethanol. The mixture was stirred at room temperature for 1.5 hours. The reaction mixture was adjusted to pH 3 with 1N hydrochloric acid. Thereto were added 80 ml of ethyl acetate and 80 ml of water to conduct distribution. The organic layer was dried with anhydrous magnesium sulfate and then subjected to vacuum distillation to remove the solvent at room temperature to obtain 2.17 g of (3RS,6SR)-3-benzyl-1-benzyloxy-3-carboxy-6-isobutylpiperazine-2,5-dione as a light yellow solid.

Aufarbeitung

  1. dry with materialThe organic layer was dried with anhydrous magnesium sulfate
  2. distillationsubjected to vacuum distillation
  3. customto remove the solvent at room temperature

Quellen und Nachweise

ORD-Eintrag
ord-ea1d3949ab4e4f37804955cad419a35d
Quelldatensatz
uspto-grants-1997_03
Patentnummer
US05607934

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