Water → 6-Chloro-2-methyl-4-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)pyridazin-3(2H)-one

HRID 1919125Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1919125
Cl.[Cl:2][C:3]1[CH:4]=[C:5]([NH:11][C:12]2[CH:17]=[CH:16][C:15]([N:18]3[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]3)=[CH:14][N:13]=2)[C:6](=[O:10])[N:7]([CH3:9])[N:8]=1.[O:24]1[CH2:27][C:26](=O)[CH2:25]1.[BH3-]C#N.[Na+].O>CO.[Cl-].[Zn+2].[Cl-]>[Cl:2][C:3]1[CH:4]=[C:5]([NH:11][C:12]2[CH:17]=[CH:16][C:15]([N:18]3[CH2:23][CH2:22][N:21]([CH:26]4[CH2:27][O:24][CH2:25]4)[CH2:20][CH2:19]3)=[CH:14][N:13]=2)[C:6](=[O:10])[N:7]([CH3:9])[N:8]=1

Komponenten

7

Edukt 4

HCID 962WaterHCID 5003444Sodium cyanoborohydrideHCID 150242543-OxetanoneHCID 670162986-Chloro-2-methyl-4-(5-(piperazin-1-yl)pyridin-2-ylamino)pyridazin-3(2H)-one Hydrochloride

Produkt 1

HCID 580440166-Chloro-2-methyl-4-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)pyridazin-3(2H)-oneAusbeute 50 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 3007855ZincchlorideKatalysatorHCID 887MethanolLösungsmittel

Versuchsvorschrift

A mixture of 328b (1.2 g, 3.5 mmol), oxetan-3-one (0.5 g, 7.0 mmol), NaBH3CN (0.44 g, 7.0 mmol) and zinc chloride (0.93 g, 7.0 mmol) in methanol (125 ml) was stirred at 50 degree for 3.5 hours. The mixture was added to water and extracted with methylene chloride. The organic layers were combined and concentrated under reduced pressure. The residue was purified by column chromatography eluting with 25:1 methylene chloride/methanol to give 328c (0.63 g, 50%). MS: [M+H]+ 377.

Aufarbeitung

  1. extractionextracted with methylene chloride
  2. concentrationconcentrated under reduced pressure
  3. customThe residue was purified by column chromatography
  4. washeluting with 25:1 methylene chloride/methanol

Quellen und Nachweise

ORD-Eintrag
ord-0ceb0a88622049e19c13c7e32a101d63
Quelldatensatz
uspto-grants-2013_12
Patentnummer
US08618107B2

Notizen zur Reaktion

Wird geladen…