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Hydrochloric Acid → Repaglinide

HRID 423216
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 423216
[CH2:1]([O:3][C:4]1[CH:14]=[C:13]([CH2:15][C:16]([NH:18][C@H:19]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=2[N:30]2[CH2:35][CH2:34][CH2:33][CH2:32][CH2:31]2)[CH2:20][CH:21]([CH3:23])[CH3:22])=[O:17])[CH:12]=[CH:11][C:5]=1[C:6]([O:8]CC)=[O:7])[CH3:2].[OH-].[Na+].Cl>CO.O>[CH3:2][CH2:1][O:3][C:4]1[CH:14]=[C:13]([CH2:15][C:16]([NH:18][C@H:19]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=2[N:30]2[CH2:35][CH2:34][CH2:33][CH2:32][CH2:31]2)[CH2:20][CH:21]([CH3:23])[CH3:22])=[O:17])[CH:12]=[CH:11][C:5]=1[C:6]([OH:8])=[O:7]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 106484192-Ethoxy-4-(3-((S)-3-methy-1-(2-piperidin-1-yl-phenyl)-butylamino)-2-oxo-propyl)-benzoic acid ethyl ester

Produkt 1

HCID 65981RepaglinideAusbeute 83,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittel
HCID 962
Water
Lösungsmittel

Reaktionsbedingungen

Temperatur
62.5 °C

Versuchsvorschrift

Ethyl (S)-2-ethoxy-4-[N-(1-(2-piperidino-phenyl)-3-methyl-1-butyl)-amino carbonylmethyl]-benzoate (4.5 g, 0.0093 mol) was dissolved in methanol (45 ml), followed by the addition of sodium hydroxide solution (0.75 g of sodium hydroxide dissolved in 6 ml water). The reaction mixture was heated at 60-65° C. for 3-4 hours. Methanol (80-85%) was removed from the reaction mixture under vacuum. The remaining reaction mixture was diluted with water (45 ml) and pH was adjusted to 6.5-7.0 with 1N HCl. The precipitated solid was stirred for 2-3 hours followed by filtration and washing with water (45 ml). The product was further dried at 50-55° C. under vacuum for 6-8 hours to produce Repaglinide (Yield=83.2%; HPLC Purity: 99.89%).

Aufarbeitung

  1. customMethanol (80-85%) was removed from the reaction mixture under vacuum
  2. customThe remaining reaction mixture
  3. filtrationfollowed by filtration
  4. washwashing with water (45 ml)
  5. customThe product was further dried at 50-55° C. under vacuum for 6-8 hours

Quellen und Nachweise

ORD-Eintrag
ord-281ce03874f640e88c967d90904e61fe
Quelldatensatz
uspto-grants-2012_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08101769B2

Notizen zur Reaktion

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