Potassium Carbonate → N-{(1RS,2SR)-2-hydroxy-2-[4-(3-phenoxypropoxy)phenyl]-1-[3-(1,1,2,2-tetrafluoroethoxy)benzyl]ethyl}-6,7-dihydro-5H-benzo[a][7]annulene-1-carboxamide
Reaction equation
[OH:1][CH:2]([C:32]1[CH:37]=[CH:36][C:35]([OH:38])=[CH:34][CH:33]=1)[CH:3]([NH:18][C:19]([C:21]1[CH:22]=[CH:23][CH:24]=[C:25]2[CH2:31][CH2:30][CH2:29][CH:28]=[CH:27][C:26]=12)=[O:20])[CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][C:12]([F:17])([F:16])[CH:13]([F:15])[F:14])[CH:6]=1.C(=O)([O-])[O-].[K+].[K+].[O:45]([CH2:52][CH2:53][CH2:54]Br)[C:46]1[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=1>CN(C)C=O.O>[OH:1][CH:2]([C:32]1[CH:37]=[CH:36][C:35]([O:38][CH2:54][CH2:53][CH2:52][O:45][C:46]2[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=2)=[CH:34][CH:33]=1)[CH:3]([NH:18][C:19]([C:21]1[CH:22]=[CH:23][CH:24]=[C:25]2[CH2:31][CH2:30][CH2:29][CH:28]=[CH:27][C:26]=12)=[O:20])[CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][C:12]([F:16])([F:17])[CH:13]([F:15])[F:14])[CH:6]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of N-{(1RS,2SR)-2-hydroxy-2-(4-hydroxyphenyl)-1-[3-(1,1,2,2-tetrafluoroethoxy)benzyl]ethyl}-6,7-dihydro-5H-benzo[a][7]annulene-1-carboxamide (400 mg, 0.755 mmol) in N,N-dimethylformamide (15 ml) were added potassium carbonate (313 mg, 2.27 mmol) and 3-phenoxy-1-bromopropane (487 mg, 2.27 mmol), and the mixture was stirred overnight at room temperature. The reaction solution was diluted with water (100 ml) and extracted with ethyl acetate (100 ml×2). The extract was washed successively with water and saturated brine, dried (anhydrous magnesium sulfate) and evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1). Recrystallization from ethyl acetate-hexane gave the objective substance (245 mg, 50%).
Workup
- extractionextracted with ethyl acetate (100 ml×2)
- washThe extract was washed successively with water and saturated brine
- dry with materialdried (anhydrous magnesium sulfate)
- customevaporated under reduced pressure
- customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1)
- customRecrystallization from ethyl acetate-hexane
- customgave the objective substance (245 mg, 50%)
Sources & evidence
- ORD record
- ord-0b4a67996ccd4240a22d60d359d7408a
- Source dataset
- uspto-grants-2006_01
- Patent number
- US06982348B2
Reaction notes
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