Phenylpropanolamine → (1R,2S)-1-[(1-isopropyl-1H-indazol-5-yl)oxy]-1-phenylpropan-2-amine

HRID 1661455

Reaktionsgleichung

I[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([CH:11]([CH3:13])[CH3:12])[N:6]=[CH:5]2.[NH2:14][C@@H:15]([CH3:24])[C@@H:16]([C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[OH:17].C(=O)([O-])[O-].[Cs+].[Cs+]>C(#N)CCC.[Cu]I>[CH:11]([N:7]1[C:8]2[C:4](=[CH:3][C:2]([O:17][C@H:16]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[C@@H:15]([NH2:14])[CH3:24])=[CH:10][CH:9]=2)[CH:5]=[N:6]1)([CH3:13])[CH3:12]

Komponenten

Reaktionsbedingungen

Temperatur: 125 °C

Versuchsvorschrift

A mixture of 5-iodo-1-isopropyl-1H-indazole (30c, 461 mg, 1.26 mmol), (1R,2S)-2-amino-1-phenylpropan-1-ol (286 mg, 1.89 mmol), copper (I) iodide (25 mg, 130 μmol), and cesium carbonate (1.45 g, 3.8 mmol) in butyronitrile (5 ml) was stirred at 125° C. for 2 h. Then the mixture was cooled to room temp., the inorganic material was removed by filtration and washed with ethyl acetate. The combined organic solutions were concentrated i. vac., and the product purified by flash chromatography on silica gel (ethyl acetate/methanol). Yield 200 mg (51%) of a brown oil.

Aufarbeitung

temperatureThen the mixture was cooled to room temp.
customthe inorganic material was removed by filtration
washwashed with ethyl acetate
concentrationThe combined organic solutions were concentrated i
custom, and the product purified by flash chromatography on silica gel (ethyl acetate/methanol)

Quellen und Nachweise

ORD-Eintrag: ord-92984ab5255a42178e20c7dc7fd750c4
Quelldatensatz: uspto-grants-2011_10
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08030340B2

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