Trifluoroacetic acid → HCID 11532809, compound
Reaction equation
C([O:5][C:6]([C:8]1[CH:9]=[C:10]2[C:14](=[CH:15][CH:16]=1)[N:13]([CH2:17][C:18](=[O:38])[CH2:19][O:20][C:21]1[CH:26]=[CH:25][C:24]([O:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37])=[CH:23][CH:22]=1)[CH:12]=[CH:11]2)=[O:7])(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[CH2:28]([O:27][C:24]1[CH:25]=[CH:26][C:21]([O:20][CH2:19][C:18](=[O:38])[CH2:17][N:13]2[C:14]3[C:10](=[CH:9][C:8]([C:6]([OH:7])=[O:5])=[CH:16][CH:15]=3)[CH:11]=[CH:12]2)=[CH:22][CH:23]=1)[CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
50 mg (0.096 mmol) tert-butyl-1-[3-(4-decyloxyphenoxy)-2-oxopropyl]indole-5-carboxylate are dissolved in 15 ml absolute dichloromethane and mixed with 0.82 g (7.19 mmol) trifluoroacetic acid. Having stirred at room temperature for 4 hours, the batch is concentrated to dryness on the rotary evaporator. Three admixtures with 10 ml of a mixture of petroleum ether and ethyl acetate (4:1) each and respective concentration to dryness on the rotary evaporator leave as a crude product a solid which is purified on an RP-HPLC column by means of chromatography (stationary phase: cromasil, flow agent: acetonitrile/water 90:10).
Workup
- concentrationthe batch is concentrated to dryness on the rotary evaporator
- concentrationThree admixtures with 10 ml of a mixture of petroleum ether and ethyl acetate (4:1) each and respective concentration to dryness
- customon the rotary evaporator
Sources & evidence
- ORD record
- ord-ab22a6757e7b48f6bc5c5f5642d72ba1
- Source dataset
- uspto-grants-2009_10
- Patent number
- US07608633B2
Reaction notes
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