Dichloromethane → (2R)-2-amino-N-(6-{[4-methyl-3-(methyloxy)phenyl]oxy}-3-pyridinyl)butanamide
Reaktionsgleichung
CC([N:5]([C@@H:9]([C:12]([NH:14][C:15]1[CH:16]=[N:17][C:18]([O:21][C:22]2[CH:27]=[CH:26][C:25]([CH3:28])=[C:24]([O:29][CH3:30])[CH:23]=2)=[CH:19][CH:20]=1)=[O:13])[CH2:10][CH3:11])C(=O)[O-])(C)C.ClCCl>>[NH2:5][C@H:9]([CH2:10][CH3:11])[C:12]([NH:14][C:15]1[CH:16]=[N:17][C:18]([O:21][C:22]2[CH:27]=[CH:26][C:25]([CH3:28])=[C:24]([O:29][CH3:30])[CH:23]=2)=[CH:19][CH:20]=1)=[O:13]Komponenten
3
Versuchsvorschrift
To a solution of 1,1-dimethylethyl((1R)-1-{[(6-{[4-methyl-3-(methyloxy)phenyl]oxy}-3-pyridinyl)amino]carbonyl}propyl)carbamate (Reference Intermediate R5, 175 mg) in dry dichloromethane (DCM) (6 mL) TFA (2 mL, 26.0 mmol) was slowly added and the reaction mixture was stirred for 1 h at room temperature. The solvent and the excess of TFA were evaporated and the residue was purified by SCX cartridge (5 g) to afford the title compound as a colourless solid (122 mg).