Butyronitrile → (alphaS,betaR)-beta-{[1-(3-Pyridyl)-1H-indazole-5-yl]oxy}-alpha-methylbenzeneethanamine

Beteiligte Stoffe

Reaktionsschritte

(1R,2S)-Norephedrine (500 mg, 3.31 mmol), 5-iodo-1-(3-pyridyl)-1H-indazole (1.08 g, 33.37 mmol), cesiumcarbonate (2.15 g, 6.61 mmol), copper (I)-iodide (314.9 mg, 1.65 mmol) and butyronitrile (2 mL) are stirred in a glass pressure tube at 120° C. for 20 h. The reaction mixture is filtered via a glass microfibre filter, the solvent evaporated and the residue purified by chromatography (silicagel, eluents: dichloromethane/methanol). 307.8 mg (27%) of the title compound are obtained.

Herkunft & Nachweise