HCID 10755519, compound → HCID 11776526, compound
Reaction equation
C([NH:4][CH:5]([CH2:9][C:10]([C:12]1[CH:17]=[C:16]([Cl:18])[CH:15]=[CH:14][C:13]=1[NH2:19])=[O:11])[C:6]([OH:8])=[O:7])(=O)C>CC(O)=O>[NH2:4][C@@H:5]([CH2:9][C:10]([C:12]1[CH:17]=[C:16]([Cl:18])[CH:15]=[CH:14][C:13]=1[NH2:19])=[O:11])[C:6]([OH:8])=[O:7]Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
Starting from 1.03 g. of (+)-2-acetamido-4-(2-amino-5-chlorophenyl)-4-oxo-butyric acid as described above for the preparation of (R)-enantiomer, 0.65 g (71.4%) of (S)-(-)-2-amino-4-(2-amino-5-chlorophenyl)-4-oxo-butyric acid were obtained (m.p. 208°-209° C. (dec.); [α]20D =-12.6° (1%, CH3COOH); ee=96%).
Sources & evidence
- ORD record
- ord-f0d4039efae44573812478462239997b
- Source dataset
- uspto-grants-1998_07
- Patent number
- US05786508
Reaction notes
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