Trifluoroacetic acid → HCID 11001175, Verbindung
Reaktionsgleichung
FC(F)(F)C(O)=O.C(O[C:13](=O)[N:14]([C@H:16]([CH2:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)[C:17]([N:19]1[CH2:24][CH2:23][CH2:22][C@@H:21]([CH2:25][N:26]([CH3:28])[CH3:27])[CH2:20]1)=[O:18])C)(C)(C)C>ClCCl>[CH3:27][N:26]([CH2:25][C@@H:21]1[CH2:22][CH2:23][CH2:24][N:19]([C:17](=[O:18])[C@H:16]([NH:14][CH3:13])[CH2:29][C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[CH2:20]1)[CH3:28]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
At 0° C., trifluoroacetic acid (25 ml) was added to a solution of N-[(1R)-1-benzyl-2-((3S)-3-(dimethylaminomethyl)piperidin-1-yl)-2-oxoethyl]-N-methylcarbamic acid tert-butyl ester (1.69 g, 4.2 mmol) in dichloromethane (25 ml). The reaction mixture was stirred for 30 min at 0° C. The solvent was removed in vacuo. The residue was dissolved in dichloromethane (100 ml) and the solvent was removed in vacuo. The latter procedure was repeated two times. The crude product was purified by flash chromatography on silica (90 g), using dichloromethane/methanol/25% aqueous ammonia (100:10:1) as eluent, to give 1.15 g of (2R)-1-((3S)-3-((dimethylamino)methyl)piperidin-1-yl)-2-methylamino-3-phenylpropan-1-one.