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Triethyl phosphite → (1R,5S,6S)-2-[(4R)-pyrrolidine-2-thion-4-ylthio]-6-[(1R)-1-hydroxyethyl]-1-methyl-carbapen-2-em-3-carboxylic acid sodium salt

HRID 1708522
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1708522
C(=O)([O-])O.[Na+:5].CC1(C)CC(=O)CC(=O)C1.P(OCC)(OCC)OCC.C([O:29][C:30]([C:32]1[N:36]2[C:37](=[O:42])[C@H:38]([C@H:39]([OH:41])[CH3:40])[C@H:35]2[C@@H:34]([CH3:43])[C:33]=1[S:44][C@H:45]1[CH2:49][NH:48][C:47](=[S:50])[CH2:46]1)=[O:31])C=C>O.C([O-])(=O)C.C([O-])(=O)C.[Pd+2].O1CCCC1>[Na+:5].[NH:48]1[CH2:49][C@H:45]([S:44][C:33]2[C@H:34]([CH3:43])[C@@H:35]3[C@@H:38]([C@H:39]([OH:41])[CH3:40])[C:37](=[O:42])[N:36]3[C:32]=2[C:30]([O-:31])=[O:29])[CH2:46][C:47]1=[S:50]
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Komponenten

8

Edukt 4

HCID 31215Triethyl phosphiteHCID 31358DimedoneHCID 516892Sodium BicarbonateHCID 10571982HCID 10571982, Verbindung

Produkt 1

HCID 23689827(1R,5S,6S)-2-[(4R)-pyrrolidine-2-thion-4-ylthio]-6-[(1R)-1-hydroxyethyl]-1-methyl-carbapen-2-em-3-carboxylic acid sodium saltAusbeute 90 %

Reagenzien, Katalysatoren, Lösungsmittel

3
HCID 167845palladium(II) acetateKatalysatorHCID 962WaterLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A mixture of sodium hydrogen carbonate (0.84 g) in water (10 ml), dimedone (0.84 g) and tetrahydrofuran (80 ml) is treated with ultrasonics, and thereto is added palladium diacetate (0.11 g) and triethyl phosphite (0.58 g) under nitrogen atmosphere, and the mixture is stirred for three minutes. To the mixture is added (1R,5S,6S)-2-[(4R)-pyrrolidine-2-thion-4-ylthio]-6-[(1R)-1-hydroxyethyl]-1-methylcarbapen-2-em-3-carboxylic acid allyl ester (3.83 g), and the mixture is stirred at 35°-37° C. for 45 minutes. The mixture is stirred at 5° C. for 30 minutes, and the precipitated crystals are collected by filtration, washed with tetrahydrofuran, and dried under reduced pressure to give (1R,5S,6S)-2-[(4R)-pyrrolidine-2-thion-4-ylthio]-6-[(1R)-1-hydroxyethyl]-1-methyl-carbapen- 2-em-3-carboxylic acid sodium salt (3.28 g).

Aufarbeitung

  1. additionis treated with ultrasonics
  2. stirringthe mixture is stirred at 35°-37° C. for 45 minutes
  3. stirringThe mixture is stirred at 5° C. for 30 minutes
  4. filtrationthe precipitated crystals are collected by filtration
  5. washwashed with tetrahydrofuran
  6. customdried under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-6528f2662cb549b4b9d1296290a6d8f1
Quelldatensatz
uspto-grants-1994_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05359059

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