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Triethylamine → HCID 69188199, Verbindung

HRID 885505
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 885505
[CH3:1][O:2][C:3](=[O:18])[C@H:4]([NH2:17])[CH2:5][CH2:6][CH2:7][CH2:8][NH:9][C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11].[CH3:19][C:20]1[CH:21]=[C:22](B(O)O)[CH:23]=[C:24]([CH3:27])[C:25]=1[F:26].C(N(CC)CC)C>ClCCl.CC([O-])=O.CC([O-])=O.[Cu+2]>[CH3:1][O:2][C:3](=[O:18])[C@H:4]([NH:17][C:22]1[CH:23]=[C:24]([CH3:27])[C:25]([F:26])=[C:20]([CH3:19])[CH:21]=1)[CH2:5][CH2:6][CH2:7][CH2:8][NH:9][C:10]([O:12][C:13]([CH3:14])([CH3:15])[CH3:16])=[O:11]
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Komponenten

6

Edukt 3

HCID 8471TriethylamineHCID 13645075(R)-Methyl 2-amino-6-((tert-butoxycarbonyl)amino)hexanoateHCID 17750045(4-Fluoro-3,5-dimethylphenyl)boronic acid

Produkt 1

HCID 69188199HCID 69188199, VerbindungAusbeute 80 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8895Cupric acetateKatalysator
HCID 6344
Dichloromethane
Lösungsmittel

Versuchsvorschrift

To a suspension of (R)-2-Amino-6-tert-butoxycarbonylamino-hexanoic acid methyl ester (3.000 g, 10.108 mmol), 3,5-dimethyl-4-fluorophenylboronic acid (3.398 g, 20.216 mmol), Cu(OAc)2 (2.019 g, 11.119 mmol), and molecular sieves 4 Å (7.591 g) in 45 mL of dichloromethane, triethylamine (2.8 mL, 20.216 mmol) was added. After stirring at room temperature under O2 for 87 h, the reaction mixture was filtered through a pad of Celite and washed with dichloromethane. The filtrate was concentrated under reduced pressure. The product was isolated by Flash chromatography (silica gel) eluting with 0-30% ethyl acetate/hexanes to give the title compound as colorless oil (3.084 g, 80% yield). LC-MS: tR=9.8 min; m/z 383 (M+H)+.

Aufarbeitung

  1. filtrationthe reaction mixture was filtered through a pad of Celite
  2. washwashed with dichloromethane
  3. concentrationThe filtrate was concentrated under reduced pressure
  4. customThe product was isolated by Flash chromatography (silica gel)
  5. washeluting with 0-30% ethyl acetate/hexanes

Quellen und Nachweise

ORD-Eintrag
ord-e0235406cb4d40a892e126402b25a481
Quelldatensatz
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08242174B2

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