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3-Amino-1-propanol → N-((1R)-1-(3-hydroxypropylcarbamoyl)-2-phenylethyl)-N-methylcarbamic acid tert-butylester

HRID 366224
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 366224
[NH2:1][CH2:2][CH2:3][CH2:4][OH:5].[C:6]([O:10][C:11]([N:13]([CH3:25])[C@@H:14]([C:22](O)=[O:23])[CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)=[O:12])([CH3:9])([CH3:8])[CH3:7].O.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC>CN(C)C=O.S([O-])(O)(=O)=O.[Na+]>[C:6]([O:10][C:11](=[O:12])[N:13]([C@@H:14]([C:22](=[O:23])[NH:1][CH2:2][CH2:3][CH2:4][OH:5])[CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[CH3:25])([CH3:7])([CH3:9])[CH3:8]
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Komponenten

7

Edukt 4

HCID 90863-Amino-1-propanolHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 7015127N-Boc-N-methyl-D-phenylalanine

Produkt 1

HCID 54054214N-((1R)-1-(3-hydroxypropylcarbamoyl)-2-phenylethyl)-N-methylcarbamic acid tert-butylesterAusbeute 64,6 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 516919Sodium BisulfateLösungsmittel

Versuchsvorschrift

3-Aminopropan-1-ol (0.39 mL, 5.12 mmol) was added at room temperature to a solution of N-tert-butoxycarbonyl-N-methyl-D-phenylalanine (1.30 g, 4.65 mmol) in N,N-dimethylformamide (40 mL). 1-Hydroxybenzotriazole monohydrate (0.63 g, 4.65 mmol) and N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (0.89 g, 4.65 mmol) were added successively. The reaction mixture was stirred for 22 h at room temperature. It was diluted with 10% sodium hydrogensulfate solution (300 mL) and extracted with ethyl acetate (4×100 mL). The combined organic layers were dried over magnesium sulfate. The solvent was removed in vacuo and the crude product was purified by flash chromatography on silica (45 g) with dichloromethane/methanol (10:1) to give 1.01 g of N-((1R)-1-(3-hydroxypropylcarbamoyl)-2-phenylethyl)-N-methylcarbamic acid tert-butylester.

Aufarbeitung

  1. extractionextracted with ethyl acetate (4×100 mL)
  2. dry with materialThe combined organic layers were dried over magnesium sulfate
  3. customThe solvent was removed in vacuo
  4. customthe crude product was purified by flash chromatography on silica (45 g) with dichloromethane/methanol (10:1)

Quellen und Nachweise

ORD-Eintrag
ord-ca29408981794951a12748b33cccb0e9
Quelldatensatz
uspto-grants-2000_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06127391

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