(S)-2-(tert-butoxycarbonylamino)-3-(2-nitro-6-(trifluoromethyl)phenoxy)propanoic acid → (S)-3-(2-amino-6-(trifluoromethyl)phenoxy)-2-(tert-butoxycarbonylamino)propanoic acid
反応式
[C:1]([O:5][C:6]([NH:8][C@@H:9]([CH2:13][O:14][C:15]1[C:20]([C:21]([F:24])([F:23])[F:22])=[CH:19][CH:18]=[CH:17][C:16]=1[N+:25]([O-])=O)[C:10]([OH:12])=[O:11])=[O:7])([CH3:4])([CH3:3])[CH3:2]>CO.[Pd]>[NH2:25][C:16]1[CH:17]=[CH:18][CH:19]=[C:20]([C:21]([F:22])([F:23])[F:24])[C:15]=1[O:14][CH2:13][C@H:9]([NH:8][C:6]([O:5][C:1]([CH3:4])([CH3:3])[CH3:2])=[O:7])[C:10]([OH:12])=[O:11]参加物
4
実験手順
10% Pd/C (150 mg) was added to a solution of (S)-2-(tert-butoxycarbonylamino)-3-(2-nitro-6-(trifluoromethyl)phenoxy)propanoic acid (1.5 g, 3.8 mmol) in MeOH and the mixture stirred under H2. After 4 h the mixture was filtered through Celite, the filter cake washed with MeOH and the filtrate concentrated to afford (S)-3-(2-amino-6-(trifluoromethyl)phenoxy)-2-(tert-butoxycarbonylamino)propanoic acid (1.23 g, 89%) which was used without purification.