Trifluoroacetic acid → HCID 18331440, compound
Reaction equation
C(OC([NH:8][CH2:9][C:10]1[CH:11]=[C:12]([NH:16][C:17]2[S:18][C:19]([CH3:22])=[CH:20][N:21]=2)[CH:13]=[CH:14][CH:15]=1)=O)(C)(C)C.FC(F)(F)C(O)=O>>[NH2:8][CH2:9][C:10]1[CH:11]=[C:12]([NH:16][C:17]2[S:18][C:19]([CH3:22])=[CH:20][N:21]=2)[CH:13]=[CH:14][CH:15]=1Participants
3
Procedure
A mixture of the compound (73 mg) obtained in Example 507 and trifluoroacetic acid (5 ml) was stirred at room temperature for 1 h and concentrated under reduced pressure. The resulting residue was purified by basic silica gel column chromatography (eluent, methylene chloride:methanol=95:5) to give 34.5 mg of the titled compound (yield, 67%).
Workup
- concentrationconcentrated under reduced pressure
- customThe resulting residue was purified by basic silica gel column chromatography (eluent, methylene chloride:methanol=95:5)
Sources & evidence
- ORD record
- ord-ae9fdb8c0120413599ae4555c1c6a0ec
- Source dataset
- uspto-grants-2001_12
- Patent number
- US06331553B1
Reaction notes
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