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Methanol → 3-[1-(6,7-Dimethoxy-4-quinazolinyl)-4-piperidinyl]-1,2,3,4-tetrahydro-6-(1-hydroxyethyl)-1-methyl-2,4-dioxoquinazoline

HRID 2257749
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2257749
CO.C(Cl)(Cl)Cl.[C:7]([C:10]1[CH:11]=[C:12]2[C:17](=[CH:18][CH:19]=1)[N:16]([CH3:20])[C:15](=[O:21])[N:14]([CH:22]1[CH2:27][CH2:26][N:25]([C:28]3[C:37]4[C:32](=[CH:33][C:34]([O:40][CH3:41])=[C:35]([O:38][CH3:39])[CH:36]=4)[N:31]=[CH:30][N:29]=3)[CH2:24][CH2:23]1)[C:13]2=[O:42])(=[O:9])[CH3:8].[BH4-].[Na+]>O>[CH3:39][O:38][C:35]1[CH:36]=[C:37]2[C:32](=[CH:33][C:34]=1[O:40][CH3:41])[N:31]=[CH:30][N:29]=[C:28]2[N:25]1[CH2:26][CH2:27][CH:22]([N:14]2[C:13](=[O:42])[C:12]3[C:17](=[CH:18][CH:19]=[C:10]([CH:7]([OH:9])[CH3:8])[CH:11]=3)[N:16]([CH3:20])[C:15]2=[O:21])[CH2:23][CH2:24]1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 887MethanolHCID 6212ChloroformHCID 4311764Sodium borohydrideHCID 229233736-Acetyl-3-[1-(6,7-dimethoxy-4-quinazolinyl)-4-piperidinyl]-1,2,3,4-tetrahydro-1-methyl-2,4-dioxo-quinazoline

Produkt 1

HCID 229235413-[1-(6,7-Dimethoxy-4-quinazolinyl)-4-piperidinyl]-1,2,3,4-tetrahydro-6-(1-hydroxyethyl)-1-methyl-2,4-dioxoquinazoline
Ausbeute 73 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

In a solvent mixture of 3 ml of methanol and 3 ml of chloroform was dissolved 200.0 mg (0.41 mmol) of Compound 63 obtained in Example 50, and sodium borohydride was added thereto in excess, followed by heating at 60° C. for 30 minutes. After cooling, water was added to the reaction mixture, and the mixture was extracted with chloroform. The organic layer was washed and dried, and the solvent was distilled off under reduced pressure. To the residue was added ether, and the precipitated crystals were collected by filtration and dried to give 146.4 mg (yield: 73%) of Compound 60 as white crystals.

Aufarbeitung

  1. additionwas added
  2. temperatureAfter cooling
  3. extractionthe mixture was extracted with chloroform
  4. washThe organic layer was washed
  5. customdried
  6. distillationthe solvent was distilled off under reduced pressure
  7. additionTo the residue was added ether
  8. filtrationthe precipitated crystals were collected by filtration
  9. customdried

Quellen und Nachweise

ORD-Eintrag
ord-55e7f756762e45bdae1ae369c4fd8d61
Quelldatensatz
uspto-grants-1997_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05658917

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