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Triethylamine → 7-(benzyloxy)-2-[(methoxyamino)methyl]-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-imidazo[4,5-c]quinolin-4-amine

HRID 2426362
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2426362
[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]2[C:13]3[N:22]([CH2:23][CH:24]4[CH2:29][CH2:28][O:27][CH2:26][CH2:25]4)[C:21]([CH2:30]Cl)=[N:20][C:14]=3[C:15]([NH2:19])=[N:16][C:17]=2[CH:18]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.Cl.[O:40]([NH2:42])[CH3:41]>CN(C)C=O>[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]2[C:13]3[N:22]([CH2:23][CH:24]4[CH2:29][CH2:28][O:27][CH2:26][CH2:25]4)[C:21]([CH2:30][NH:42][O:40][CH3:41])=[N:20][C:14]=3[C:15]([NH2:19])=[N:16][C:17]=2[CH:18]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 521874O-Methylhydroxylamine hydrochlorideHCID 672629687-(Benzyloxy)-2-(chloromethyl)-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-imidazo[4,5-c]quinolin-4-amine

Produkt 1

HCID 119562407-(benzyloxy)-2-[(methoxyamino)methyl]-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-imidazo[4,5-c]quinolin-4-amineAusbeute 36,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228
Dimethylformamide
Lösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

7-(Benzyloxy)-2-(chloromethyl)-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-imidazo[4,5-c]quinolin-4-amine (2.3 g, 5.26 mmol) and triethylamine (1.6 g, 15.78 mmol) were added to a solution of methoxylamine hydrochloride (0.88 g, 10.52 mmol) in N,N-dimethylformamide (DMF) (11 mL). The reaction was heated with stirring for 40 hours at 50° C., allowed to cool to ambient temperature, and partitioned between dichloromethane (50 mL) and water (50 mL). The aqueous layer was extracted with another portion of dichloromethane (50 mL). The combined organic layers were dried over sodium sulfate, filtered and concentrated under reduced pressure. The crude material was purified by column chromatography using a HORIZON HPFC system equipped with a FLASH 40+M silica cartridge eluting with dichloromethane:methanol in a gradient from 100:0 to 90:10. The resulting product (1.0 g) was recrystallized from acetonitrile, and the crystals were isolated by filtration, washed with acetonitrile, and dried overnight in a vacuum oven at 65° C. to provide 0.85 g of 7-(benzyloxy)-2-[(methoxyamino)methyl]-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-imidazo[4,5-c]quinolin-4-amine as a yellow, crystalline solid, mp 190-193° C.

Aufarbeitung

  1. temperatureThe reaction was heated
  2. temperatureto cool to ambient temperature
  3. custompartitioned between dichloromethane (50 mL) and water (50 mL)
  4. extractionThe aqueous layer was extracted with another portion of dichloromethane (50 mL)
  5. dry with materialThe combined organic layers were dried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe crude material was purified by column chromatography
  9. customequipped with a FLASH 40+M silica cartridge
  10. washeluting with dichloromethane
  11. customThe resulting product (1.0 g) was recrystallized from acetonitrile
  12. customthe crystals were isolated by filtration
  13. washwashed with acetonitrile
  14. customdried overnight in a vacuum oven at 65° C.

Quellen und Nachweise

ORD-Eintrag
ord-32afce062cfb4af9a35ac30156c73fb6
Quelldatensatz
uspto-grants-2011_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07968563B2

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