Trifluoroacetic acid → Ethyl 3-phenyl-3-(6-carboxymethoxyindol-3-yl)propionate trifluoroacetate
Reaction equation
[C:1]1([CH:7]([C:14]2[C:22]3[C:17](=[CH:18][C:19]([O:23][CH2:24][C:25]([O:27]C(C)(C)C)=[O:26])=[CH:20][CH:21]=3)[NH:16][CH:15]=2)[CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[F:32][C:33]([F:38])([F:37])[C:34]([OH:36])=[O:35]>ClCCl>[F:32][C:33]([F:38])([F:37])[C:34]([OH:36])=[O:35].[C:1]1([CH:7]([C:14]2[C:22]3[C:17](=[CH:18][C:19]([O:23][CH2:24][C:25]([OH:27])=[O:26])=[CH:20][CH:21]=3)[NH:16][CH:15]=2)[CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1Participants
4
Procedure
1 g (2.36 mmol) of 18 are dissolved in 20 ml of dichloromethane and stirred at room temperature for 20 hours with 2 ml of trifluoroacetic acid. The solution is subsequently evaporated, and the residue is purified by preparative HPLC on RP-18, giving ethyl 3-phenyl-3-(6-carboxymethoxyindol-3-yl)-propionate trifluoroacetate.
Workup
- customThe solution is subsequently evaporated
- customthe residue is purified by preparative HPLC on RP-18
Sources & evidence
- ORD record
- ord-6f1e819255f14c5db31ddb66cb5e3856
- Source dataset
- uspto-grants-2004_06
- Patent number
- US06743810B2
Reaction notes
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