Trifluoroacetic acid → Trifluoroacetic acid
Reaction equation
C(OC([N:8]1[CH2:12][CH2:11][CH2:10][C@H:9]1[C:13](=[O:26])[NH:14][C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([O:21][C:22]([F:25])([F:24])[F:23])[CH:16]=1)=O)(C)(C)C.[C:27]([OH:33])([C:29]([F:32])([F:31])[F:30])=[O:28]>C(Cl)Cl>[F:24][C:22]([F:23])([F:25])[O:21][C:17]1[CH:16]=[C:15]([NH:14][C:13]([C@@H:9]2[CH2:10][CH2:11][CH2:12][NH:8]2)=[O:26])[CH:20]=[CH:19][CH:18]=1.[C:27]([OH:33])([C:29]([F:32])([F:31])[F:30])=[O:28]Participants
5
Reactant 2
Product 2
Reagents, catalysts & solvents 1
Procedure
To a solution of (S)-2-(3-trifluoromethoxy-phenylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (8.52 g, 22.6 mmol) in CH2Cl2 (50 mL) was added TFA (8.65 mL, 113 mmol) and solution was stirred at RT for 12 h. The crude reaction mixture was concentrated under vacuum, Et2O was added and the white precipitate was filtered off to give the desired compound as a TFA salt. MS (LC/MS): 275.2 [M+H]+, 273.3 [M−H]−; tR (HPLC conditions a) 2.47 min.
Workup
- customThe crude reaction mixture
- concentrationwas concentrated under vacuum, Et2O
- additionwas added
- filtrationthe white precipitate was filtered off
Sources & evidence
- ORD record
- ord-549478e771474c478ed6420d252e0645
- Source dataset
- uspto-grants-2015_07
- Patent number
- US09085555B2
Reaction notes
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