Cesium carbonate → N-(1-((6-((2,2-dimethyl-1,3-dioxolan-4-yl)methoxy)pyridin-2-yl)methyl)-3-ethyl-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide

HRID 79408Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 79408
[CH2:1]([C:3]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][C:10]=2[NH:12][C:13]([C:15]2[N:19]3[CH:20]=[CH:21][CH:22]=[CH:23][C:18]3=[N:17][CH:16]=2)=[O:14])[N:5]([CH2:24][C:25]2[CH:30]=[CH:29][CH:28]=[C:27]([OH:31])[N:26]=2)[N:4]=1)[CH3:2].CS(O[CH2:37][CH:38]1[CH2:42][O:41][C:40]([CH3:44])([CH3:43])[O:39]1)(=O)=O.C([O-])([O-])=O.[Cs+].[Cs+]>CC(N(C)C)=O>[CH3:43][C:40]1([CH3:44])[O:39][CH:38]([CH2:37][O:31][C:27]2[N:26]=[C:25]([CH2:24][N:5]3[C:6]4[C:11](=[C:10]([NH:12][C:13]([C:15]5[N:19]6[CH:20]=[CH:21][CH:22]=[CH:23][C:18]6=[N:17][CH:16]=5)=[O:14])[CH:9]=[CH:8][CH:7]=4)[C:3]([CH2:1][CH3:2])=[N:4]3)[CH:30]=[CH:29][CH:28]=2)[CH2:42][O:41]1

Komponenten

5

Edukt 3

HCID 10796Cesium carbonateHCID 15570840(2,2-Dimethyl-1,3-dioxolan-4-yl)methyl methanesulfonateHCID 178437935HCID 178437935, Verbindung

Produkt 1

HCID 67259775N-(1-((6-((2,2-dimethyl-1,3-dioxolan-4-yl)methoxy)pyridin-2-yl)methyl)-3-ethyl-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamideAusbeute 58,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 31374DimethylacetamideLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To N-(3-ethyl-1-((6-hydroxypyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide (17, Step A) (16 mg, 0.039 mmol) in DMA (2 mL) was added (2,2-dimethyl-1,3-dioxolan-4-yl)methyl methanesulfonate (8.2 mg, 0.039 mmol) and Cs2CO3 (25 mg, 0.078 mmol). The reaction vial was sealed and the mixture was heated at 90° C. for 6 hours. The DMA was removed under reduced pressure. The residue was diluted with EtOAc (20 mL). The organic solution was washed with saturated NaHCO3 aqueous solution and brine, and then concentrated under reduced pressure. Silica gel chromatography (DCM/MeOH 10:0.5) gave the product (12 mg).

Aufarbeitung

  1. customThe reaction vial was sealed
  2. customThe DMA was removed under reduced pressure
  3. additionThe residue was diluted with EtOAc (20 mL)
  4. washThe organic solution was washed with saturated NaHCO3 aqueous solution and brine
  5. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-201f28a51ada4d539f8ea3f962ea3de5
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08841455B2

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