(4-Chlorophenyl)acetic acid → N-[(4chlorophenyl)acetyl]-L-alanine Iso-butyl Ester
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([OH:11])=O)=[CH:4][CH:3]=1.[CH2:12]([O:16][C:17](=[O:28])[C@H:18]([CH3:27])[NH:19]C(=O)CC(C)CC)[CH:13]([CH3:15])[CH3:14]>>[CH2:12]([O:16][C:17](=[O:28])[C@H:18]([CH3:27])[NH:19][C:9](=[O:11])[CH2:8][C:5]1[CH:4]=[CH:3][C:2]([Cl:1])=[CH:7][CH:6]=1)[CH:13]([CH3:15])[CH3:14]Participants
3
Procedure
Following General Procedure B and using 4-chlorophenylacetic acid (Aldrich) and L-alanine iso-butyl ester hydrochloride (from Example 3 above), the title compound was prepared as a solid having a melting point of 111°-113° C. The reaction was monitored by tlc on silica gel and purification was by extraction with Et2O followed by washes with aqueous K2CO3 and aqueous HCl.
Workup
- customThe reaction was monitored by tlc on silica gel and purification
- extractionwas by extraction with Et2O
Sources & evidence
- ORD record
- ord-62fb7ed2e8b94361a727a31a7b17baea
- Source dataset
- uspto-grants-2004_07
- Patent number
- US06767918B2
Reaction notes
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