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4-Methylmorpholine → 2-[3,3-Bis(tert-butoxycarbonylamino)-2-oxo-piperidin-1-yl]-propionic acid ethyl ester

HRID 417459
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 417459
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[C:25]([O:29][C:30]([NH:32][C:33]([NH:48][C:49]([O:51][C:52]([CH3:55])([CH3:54])[CH3:53])=[O:50])([CH2:37][CH2:38][CH2:39][NH:40][CH:41]([C:43]([O:45][CH2:46][CH3:47])=[O:44])[CH3:42])[C:34]([OH:36])=O)=[O:31])([CH3:28])([CH3:27])[CH3:26].CN1CCOCC1>CN(C)C=O>[CH2:46]([O:45][C:43](=[O:44])[CH:41]([N:40]1[CH2:39][CH2:38][CH2:37][C:33]([NH:48][C:49]([O:51][C:52]([CH3:55])([CH3:53])[CH3:54])=[O:50])([NH:32][C:30]([O:29][C:25]([CH3:27])([CH3:26])[CH3:28])=[O:31])[C:34]1=[O:36])[CH3:42])[CH3:47]
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Komponenten

5

Edukt 3

HCID 79724-MethylmorpholineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 866488792,2-Bis(tert-butoxycarbonylamino)-5-(1-ethoxycarbonyl-ethylamino)-pentanoic acid

Produkt 1

HCID 866488782-[3,3-Bis(tert-butoxycarbonylamino)-2-oxo-piperidin-1-yl]-propionic acid ethyl esterAusbeute 86,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

HATU (1.72 g, 4.5 mmol) was added to a solution of 2,2-bis(tert-butoxycarbonylamino)-5-(1-ethoxycarbonyl-ethylamino)-pentanoic acid (1.31 g, 3.0 mmol) and 4-methylmorpholine in dimethylformamide (50 mL). After 30 minutes the solvent was removed under reduced pressure and the residue was subjected to flash chromatography with eluent of ethyl acetate and hexane. The product-containing fractions were combined and the solvent was removed under reduced pressure to provide 2-[3,3-bis(tert-butoxycarbonylamino)-2-oxo-piperidin-1-yl]-propionic acid ethyl ester (1.11 g, 2.6 mmol, 86%). C20H34N2O7 calculated 414.2 observed [M+1]+415.2; rt=2.77 min.

Aufarbeitung

  1. customAfter 30 minutes the solvent was removed under reduced pressure
  2. customthe solvent was removed under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-2ad1972bd37d4eff8f140a4597557f89
Quelldatensatz
uspto-grants-2012_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08088368B2

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