Trifluoroacetic acid → HCID 137231656, compound
Reaction equation
[NH2:1][C:2](=[N:29][N+:30]([O-:32])=[O:31])[NH:3][CH2:4][CH2:5][CH2:6][C@H:7]([C:16]([NH:18][CH2:19][C:20]1[CH:25]=[CH:24][C:23]([O:26][CH2:27][CH3:28])=[CH:22][CH:21]=1)=[O:17])[NH:8]C(OC(C)(C)C)=O.[F:33][C:34]([F:39])([F:38])[C:35]([OH:37])=[O:36].[OH-].[Na+]>>[NH2:1][C:2](=[N:29][N+:30]([O-:32])=[O:31])[NH:3][CH2:4][CH2:5][CH2:6][C@H:7]([C:16]([NH:18][CH2:19][C:20]1[CH:21]=[CH:22][C:23]([O:26][CH2:27][CH3:28])=[CH:24][CH:25]=1)=[O:17])[NH2:8].[F:33][C:34]([F:39])([F:38])[C:35]([O-:37])=[O:36]Participants
4
Procedure
Prepared analogously to Example 5e) from (R)-N5 -[amino(nitroimino)methyl]-N2 -[(tert.-butyloxy)carbonyl]-N-[(4-ethoxyphenyl)methyl]-ornithinamide by the action of trifluoroacetic acid in a yield of 70% of theory. The base liberated from the salt by treatment with 1N sodium hydroxide solution melted at 182°-184° C. (ethyl acetate).
Sources & evidence
- ORD record
- ord-0e47177b57e3422fa256272dff76bd63
- Source dataset
- uspto-grants-1997_04
- Patent number
- US05616620
Reaction notes
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