Trifluoroacetic acid → HCID 57879570, compound
Reaction equation
FC(F)(F)C(O)=O.[C:8]([NH:16][C:17]1[CH:29]=[C:28]([N:30]2[C:38]3[C:33](=[CH:34][CH:35]=[CH:36][CH:37]=3)[CH2:32][CH2:31]2)[CH:27]=[CH:26][C:18]=1[C:19]([O:21]C(C)(C)C)=[O:20])(=[O:15])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1>>[C:8]([NH:16][C:17]1[CH:29]=[C:28]([N:30]2[C:38]3[C:33](=[CH:34][CH:35]=[CH:36][CH:37]=3)[CH2:32][CH2:31]2)[CH:27]=[CH:26][C:18]=1[C:19]([OH:21])=[O:20])(=[O:15])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1Participants
3
Procedure
5.0 mL of trifluoroacetic acid solution containing 75 mg of tert-butyl 2-(benzamido)-4-(indolin-1-yl)benzoate was stirred at room temperature for 1 hour and 30 minutes. The solvent was evaporated under reduced pressure, ethyl acetate and water were added and pH was adjusted to pH 6.5 with a saturated sodium hydrogen carbonate aqueous solution. The organic layer was separated and dried over anhydrous magnesium sulfate after washed with water and a saturated sodium chloride aqueous solution sequentially, and the solvent was evaporated under reduced pressure. Methanol was added to the obtained residue and a solid substance was separated by filtration to obtain 51 mg of 2-(benzamido)-4-(indolin-1-yl)benzoic acid a yellow solid.
Workup
- customThe solvent was evaporated under reduced pressure, ethyl acetate and water
- additionwere added
- customThe organic layer was separated
- dry with materialdried over anhydrous magnesium sulfate
- washafter washed with water
- customa saturated sodium chloride aqueous solution sequentially, and the solvent was evaporated under reduced pressure
- additionMethanol was added to the obtained residue
- customa solid substance was separated by filtration
Sources & evidence
- ORD record
- ord-3681e30cef3449299fa45006aa636d44
- Source dataset
- uspto-grants-2011_08
- Patent number
- US07999132B2
Reaction notes
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