Trifluoroacetic acid → HCID 22879058, compound
Reaction equation
[C:1]1([CH2:7][CH2:8][CH2:9][CH2:10][NH:11][C:12](=[O:43])[C@@H:13]2[CH2:17][CH2:16][CH2:15][N:14]2[CH2:18][C@@H:19]([NH:24][C:25](=[O:42])[C@@H:26]([NH:34]C(OC(C)(C)C)=O)[CH2:27][CH:28]2[CH2:33][CH2:32][CH2:31][CH2:30][CH2:29]2)[CH2:20][CH:21]([CH3:23])[CH3:22])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.FC(F)(F)C(O)=O>ClCCl>[C:1]1([CH2:7][CH2:8][CH2:9][CH2:10][NH:11][C:12](=[O:43])[C@@H:13]2[CH2:17][CH2:16][CH2:15][N:14]2[CH2:18][C@@H:19]([NH:24][C:25](=[O:42])[C@@H:26]([NH2:34])[CH2:27][CH:28]2[CH2:29][CH2:30][CH2:31][CH2:32][CH2:33]2)[CH2:20][CH:21]([CH3:23])[CH3:22])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 1-[2-(S)-[[2-(S)-[[(1,1-dimethylethoxy)-carbonyl]amino]-1-oxo-3-cyclohexylpropyl]amino]-4-methylpentyl]-L-proline 4-phenylbutylamide (62.8 mg, 104 mmol) in dichloromethane (5 mL) was treated with trifluoroacetic acid (3.0 mL). After TLC indicated the reaction was complete, the mixture was concentrated to a residue, taken up in fresh dichloromethane (10 mL) and washed with satd. aq. NaHCO3 and dried (MgSO4). The solution was concentrated to an oil and chromatographed with acidic silica to provide 48.8 mg of the the title compound. The 1H NMR and Mass spectrum analysis of this compound was consistent with the structure.
Workup
- concentrationthe mixture was concentrated to a residue
- washwashed with satd
- dry with materialaq. NaHCO3 and dried (MgSO4)
- concentrationThe solution was concentrated to an oil
- customchromatographed with acidic silica
Sources & evidence
- ORD record
- ord-b4ddbe2542ce4ce9907078ac7f54bb3b
- Source dataset
- uspto-grants-1997_11
- Patent number
- US05686469
Reaction notes
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