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Water → tert-butyl (6R,7R)-6-{[(2-{[tert-butyl(dimethyl)silyl]oxy}ethyl)amino]methyl}-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate

HRID 1022689
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1022689
[Cl:1][C:2]1[CH:3]=[C:4]([C@@H:9]2[O:15][CH2:14][CH2:13][N:12]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:11][C@H:10]2[CH2:23][NH:24][CH2:25][CH2:26][OH:27])[CH:5]=[CH:6][C:7]=1[Cl:8].C(N(CC)CC)C.[C:35]([Si:39](Cl)([CH3:41])[CH3:40])([CH3:38])([CH3:37])[CH3:36].O>C1COCC1>[Si:39]([O:27][CH2:26][CH2:25][NH:24][CH2:23][C@H:10]1[C@H:9]([C:4]2[CH:5]=[CH:6][C:7]([Cl:8])=[C:2]([Cl:1])[CH:3]=2)[O:15][CH2:14][CH2:13][N:12]([C:16]([O:18][C:19]([CH3:20])([CH3:21])[CH3:22])=[O:17])[CH2:11]1)([C:35]([CH3:38])([CH3:37])[CH3:36])([CH3:41])[CH3:40]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 962WaterHCID 8471Triethylamine2×HCID 28928tert-Butyldimethylsilyl chloride2×HCID 66975933tert-butyl (6R,7R)-7-(3,4-dichlorophenyl)-6-{[(2-hydroxyethyl)amino]methyl}-1,4-oxazepane-4-carboxylate

Produkt 1

HCID 66974980tert-butyl (6R,7R)-6-{[(2-{[tert-butyl(dimethyl)silyl]oxy}ethyl)amino]methyl}-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate
Ausbeute 93,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

To a solution (13.2 mL) of tert-butyl (6R,7R)-7-(3,4-dichlorophenyl)-6-{[(2-hydroxyethyl)amino]methyl}-1,4-oxazepane-4-carboxylate (1.65 g) and triethylamine (0.605 mL) in THF was added, under ice-cooling, tert-butylchlorodimethylsilane (654 mg), and the mixture was stirred at room temperature overnight. Then, tert-butylchlorodimethylsilane (654 mg) and triethylamine (0.605 mL) were added, and the mixture was stirred at 50° C. for 1 hr. Distilled water was added, and the mixture was extracted with ethyl acetate. The extract was washed with distilled water and brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel chromatography (hexane/ethyl acetate) to give the title compound (1.96 g).

Aufarbeitung

  1. temperaturecooling
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract was washed with distilled water and brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel chromatography (hexane/ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-0e3eeccc88b240319b19f193c3cb2bef
Quelldatensatz
uspto-grants-2014_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08722662B2

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