1h-Indazole-1-carboxylic acid,5-(azidomethyl)-3-(3-fluorophenyl)-,1,1-dimethylethyl ester → 1h-Indazole-1-carboxylic acid,5-(aminomethyl)-3-(3-fluorophenyl)-,1,1-dimethylethyl ester

HRID 1983472

Reaktionsgleichung

Reaktionsgleichung von HRID 1983472
[N:1]([CH2:4][C:5]1[CH:6]=[C:7]2[C:11](=[CH:12][CH:13]=1)[N:10]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[N:9]=[C:8]2[C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([F:27])[CH:22]=1)=[N+]=[N-]>C(O)C.O1CCCC1.C(=O)([O-])[O-].[Ca+2].[Pd+2].C(=O)([O-])[O-]>[NH2:1][CH2:4][C:5]1[CH:6]=[C:7]2[C:11](=[CH:12][CH:13]=1)[N:10]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[N:9]=[C:8]2[C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([F:27])[CH:22]=1

Komponenten

5

Versuchsvorschrift

To a solution of 550 mg of tert-butyl 5-(azidomethyl)-3-(3-fluorophenyl)-1H-1-indazolecarboxylate in a mixture of 10 ml ethanol and 5 ml tetrahydrofuran was added 110 mg of 5% palladium-calcium carbonate, and the mixture was hydrogenated at room temperature at normal pressure for 1.5 hours. After filtering off the catalyst through Celite, the solvent was evaporated. The crude product was purified and separated by silica gel column chromatography (ethyl acetate:methanol=1:0 to 9:1), to give 427 mg of the title compound as light green crystals.

Aufarbeitung

  1. filtrationAfter filtering off the catalyst through Celite
  2. customthe solvent was evaporated
  3. customThe crude product was purified
  4. customseparated by silica gel column chromatography (ethyl acetate:methanol=1:0 to 9:1)

Quellen und Nachweise

ORD-Eintrag
ord-fa7bff820331474abc42ed2135486710
Quelldatensatz
uspto-grants-2009_06
Patentnummer
US07541376B2

Verknüpfte Notizen

Wird geladen…