Potassium Carbonate → Acetic acid 2-bromo-6-(6-dimethylamino-1-oxo-1H-isoquinolin-2-yl)-benzyl ester

HRID 2069748

Reaktionsgleichung

[CH3:1][N:2]([CH3:14])[C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[C:9](=[O:13])[NH:8][CH:7]=[CH:6]2.[Br:15][C:16]1[CH:26]=[CH:25][CH:24]=[C:23](Br)[C:17]=1[CH2:18][O:19][C:20](=[O:22])[CH3:21].C(=O)([O-])[O-].[K+].[K+]>CS(C)=O>[Br:15][C:16]1[CH:26]=[CH:25][CH:24]=[C:23]([N:8]2[CH:7]=[CH:6][C:5]3[C:10](=[CH:11][CH:12]=[C:3]([N:2]([CH3:14])[CH3:1])[CH:4]=3)[C:9]2=[O:13])[C:17]=1[CH2:18][O:19][C:20](=[O:22])[CH3:21]

Komponenten

Reaktionsbedingungen

Temperatur: 150 °C

Versuchsvorschrift

6-Dimethylamino-2H-isoquinolin-1-one (50 mg, 0.27 mmol), Acetic acid 2,6-dibromo-benzyl ester (164 mg, 532 mmol), cuprous iodide (10 mg, 0.053 mmol), and potassium carbonate (37 mg, 0.27 mmol) were deposited in sealed vessel. 3 mL DMSO was added. Argon was bubbled through the mixture for 2 minutes and the lid was tightly closed. This was heated at 150° C. for 5 hours. The resulting mixture was partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, concentrated in vacuo, and purified by flash chromatography (gradient elution 30 to 40% ethylacetate/hexanes) to yield Acetic acid 2-bromo-6-(6-dimethylamino-1-oxo-1H-isoquinolin-2-yl)-benzyl ester (48 mg, 0.12 mmol). MS (ESI) 417.0 (M+H)+.

Aufarbeitung

customArgon was bubbled through the mixture for 2 minutes
customthe lid was tightly closed
customThe resulting mixture was partitioned between ethyl acetate and water
washThe organic layer was washed with brine
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated in vacuo
custompurified by flash chromatography (gradient elution 30 to 40% ethylacetate/hexanes)

Quellen und Nachweise

ORD-Eintrag: ord-778d49e9666c458d9533746263966ff3
Quelldatensatz: uspto-grants-2012_10
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08299077B2

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