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Methyl iodide → (Rac)-2-chloro-9-cyclopentyl-5,7-dimethyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one

HRID 2111273
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2111273
[Cl:1][C:2]1[N:3]=[CH:4][C:5]2[NH:11][C:10](=[O:12])[CH:9]([CH3:13])[CH2:8][N:7]([CH:14]3[CH2:18][CH2:17][CH2:16][CH2:15]3)[C:6]=2[N:19]=1.[C:20](=O)([O-])[O-].[Cs+].[Cs+].CI>CN(C)C=O>[Cl:1][C:2]1[N:3]=[CH:4][C:5]2[N:11]([CH3:20])[C:10](=[O:12])[CH:9]([CH3:13])[CH2:8][N:7]([CH:14]3[CH2:18][CH2:17][CH2:16][CH2:15]3)[C:6]=2[N:19]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 6328Methyl iodideHCID 10796Cesium carbonateHCID 87617699(Rac)-2-chloro-9-cyclopentyl-7-methyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one

Produkt 1

HCID 58153876(Rac)-2-chloro-9-cyclopentyl-5,7-dimethyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-oneAusbeute 92 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228
Dimethylformamide
Lösungsmittel

Versuchsvorschrift

To a solution of 46.72 g (0.166 mole) of (rac)-2-chloro-9-cyclopentyl-7-methyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one in 1000 mL of dimethylformamide was added 81.32 g (0.25 mole) of cesium carbonate, followed by 70.88 g (0.499 mole) of methyl iodide. After stirring four hours, the mixture filtered and then concentrated under reduced pressure. The residue was taken up in ethyl acetate and washed four times with water, once with brine and dried over anhydrous sodium sulfate. The mixture was filtered and then concentrated under reduced pressure to give 45 g of (rac)-2-chloro-9-cyclopentyl-5,7-dimethyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one (VII-1). This material was used subsequent steps without further purification.

Aufarbeitung

  1. filtrationthe mixture filtered
  2. concentrationconcentrated under reduced pressure
  3. washwashed four times with water
  4. dry with materialonce with brine and dried over anhydrous sodium sulfate
  5. filtrationThe mixture was filtered
  6. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-d790976f2b44482c8f0ecbbc110c54b8
Quelldatensatz
uspto-grants-2009_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07517873B2

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