Dichloromethane → N-(5-(3,4-Difluorobenzylcarbamoyl)-2-fluorophenyl)-7-(6-formylpyridin-3-yl)imidazo[1,2-a]pyridine-3-carboxamide

HRID 335305Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 335305
Br[C:2]1[CH:7]=[CH:6][N:5]2[C:8]([C:11]([NH:13][C:14]3[CH:19]=[C:18]([C:20](=[O:31])[NH:21][CH2:22][C:23]4[CH:28]=[CH:27][C:26]([F:29])=[C:25]([F:30])[CH:24]=4)[CH:17]=[CH:16][C:15]=3[F:32])=[O:12])=[CH:9][N:10]=[C:4]2[CH:3]=1.CC1(C)C(C)(C)OB([C:41]2[CH:42]=[CH:43][C:44]([CH:47]=[O:48])=[N:45][CH:46]=2)O1.C(=O)([O-])[O-].[Cs+].[Cs+].C(Cl)Cl>COCCOC.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[F:30][C:25]1[CH:24]=[C:23]([CH:28]=[CH:27][C:26]=1[F:29])[CH2:22][NH:21][C:20]([C:18]1[CH:17]=[CH:16][C:15]([F:32])=[C:14]([NH:13][C:11]([C:8]2[N:5]3[CH:6]=[CH:7][C:2]([C:41]4[CH:46]=[N:45][C:44]([CH:47]=[O:48])=[CH:43][CH:42]=4)=[CH:3][C:4]3=[N:10][CH:9]=2)=[O:12])[CH:19]=1)=[O:31]

Komponenten

8

Edukt 4

HCID 6344DichloromethaneHCID 10796Cesium carbonateHCID 447548395-(Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2-carbaldehydeHCID 712831817-bromo-N-(5-(3,4-difluorobenzylcarbamoyl)-2-fluorophenyl)imidazo[1,2-a]pyridine-3-carboxamide2×

Produkt 1

HCID 86695680N-(5-(3,4-Difluorobenzylcarbamoyl)-2-fluorophenyl)-7-(6-formylpyridin-3-yl)imidazo[1,2-a]pyridine-3-carboxamide

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)KatalysatorHCID 962WaterLösungsmittelHCID 80711,2-DimethoxyethaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A mixture comprising 7-bromo-N-(5-(3,4-difluorobenzylcarbamoyl)-2-fluorophenyl)imidazo[1,2-a]pyridine-3-carboxamide (Intermediate 3A) (2.7 g, 5.36 mmol), 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinaldehyde (1.375 g, 5.90 mmol) and cesium carbonate (6.99 g, 21.46 mmol) in DME (30 ml) and water (3 ml) was treated with PdCl2(dppf).CH2Cl2 adduct (0.219 g, 0.268 mmol). The mixture was placed under nitrogen and heated at 100° C. for 1 hr. The resulting mixture was concentrated in vacuo and the residue was dissolved in 10% trifluoroethanol/CHCl3. The organics were washed with water and NaHCO3 and concentrated in vacuo. Purification by chromatography on silica eluting with 0-30% 2M NH3 in MeOH/DCM afforded the title product;

Aufarbeitung

  1. concentrationThe resulting mixture was concentrated in vacuo
  2. dissolutionthe residue was dissolved in 10% trifluoroethanol/CHCl3
  3. washThe organics were washed with water and NaHCO3
  4. concentrationconcentrated in vacuo
  5. customPurification by chromatography on silica eluting with 0-30% 2M NH3 in MeOH/DCM

Quellen und Nachweise

ORD-Eintrag
ord-3b77c0cc052b48ac95722199e5750bae
Quelldatensatz
uspto-grants-2014_11
Patentnummer
US08883819B2

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