Trifluoroacetic acid → HCID 178437311, compound
Reaction equation
[CH2:1]([C:3]1([C:18]([NH:20][C:21]2[CH:25]=[C:24]([O:26][CH:27]([CH3:29])[CH3:28])[N:23](COCC[Si](C)(C)C)[N:22]=2)=[O:19])[CH2:8][CH2:7][CH2:6][N:5]([S:9]([C:12]2[N:13]=[CH:14][N:15]([CH3:17])[CH:16]=2)(=[O:11])=[O:10])[CH2:4]1)[CH3:2].C(O)(C(F)(F)F)=O>>[CH2:1]([C:3]1([C:18]([NH:20][C:21]2[CH:25]=[C:24]([O:26][CH:27]([CH3:28])[CH3:29])[NH:23][N:22]=2)=[O:19])[CH2:8][CH2:7][CH2:6][N:5]([S:9]([C:12]2[N:13]=[CH:14][N:15]([CH3:17])[CH:16]=2)(=[O:11])=[O:10])[CH2:4]1)[CH3:2]Participants
3
Procedure
The compound (83 mg, 0.15 mmol) synthesized in (1), TFA (0.9 mL), and distilled water (0.1 mL) were stirred at room temperature for 2 hours. The reaction mixture was diluted with a saturated sodium hydrogen carbonate aqueous solution, and extracted with ethyl acetate. The organic layer was collected, and washed once with saturated brine. The organic layer was then dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue was then purified using silica gel column chromatography to obtain the title compound (32 mg, 50%).
Workup
- distillationdistilled water (0.1 mL)
- additionThe reaction mixture was diluted with a saturated sodium hydrogen carbonate aqueous solution
- extractionextracted with ethyl acetate
- customThe organic layer was collected
- washwashed once with saturated brine
- dry with materialThe organic layer was then dried over magnesium sulfate
- concentrationconcentrated under reduced pressure
- customThe resulting residue was then purified
Sources & evidence
- ORD record
- ord-15e531963b6446c19f84eef47002f26a
- Source dataset
- uspto-grants-2013_02
- Patent number
- US08367698B2
Reaction notes
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