2-{[4-(5-fluoropyridin-2-yl)phenyl]acetyl}-N,N-dimethyl-4-[2-methyl-2-(trifluoromethyl)but-3-en-1-yl]-1H-imidazole-1-sulfonamide → 2-{2-[4-(5-fluoropyridin-2-yl)phenyl]-1-hydroxy-1-methylethyl}-N,N-dimethyl-4-[2-methyl-2-(trifluoromethyl)but-3-en-1-yl]-1H-imidazole-1-sulfonamide
Reaction equation
[CH3:1][Mg]Br.[F:4][C:5]1[CH:6]=[CH:7][C:8]([C:11]2[CH:16]=[CH:15][C:14]([CH2:17][C:18]([C:20]3[N:21]([S:34]([N:37]([CH3:39])[CH3:38])(=[O:36])=[O:35])[CH:22]=[C:23]([CH2:25][C:26]([CH3:33])([C:29]([F:32])([F:31])[F:30])[CH:27]=[CH2:28])[N:24]=3)=[O:19])=[CH:13][CH:12]=2)=[N:9][CH:10]=1>O1CCCC1>[F:4][C:5]1[CH:6]=[CH:7][C:8]([C:11]2[CH:16]=[CH:15][C:14]([CH2:17][C:18]([C:20]3[N:21]([S:34]([N:37]([CH3:38])[CH3:39])(=[O:35])=[O:36])[CH:22]=[C:23]([CH2:25][C:26]([CH3:33])([C:29]([F:30])([F:32])[F:31])[CH:27]=[CH2:28])[N:24]=3)([OH:19])[CH3:1])=[CH:13][CH:12]=2)=[N:9][CH:10]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
Methylmagnesium bromide (3 M in diethyl ether) (0.50 mL, 1.49 mmol) was added to a 0° C. solution of 2-{[4-(5-fluoropyridin-2-yl)phenyl]acetyl}-N,N-dimethyl-4-[2-methyl-2-(trifluoromethyl)but-3-en-1-yl]-1H-imidazole-1-sulfonamide (780 mg, 1.49 mmol) in tetrahydrofuran (10 mL). After stirring at 0° C. for 30 min, the reaction mixture was quenched with water and extracted with methylene chloride and ethyl acetate. The combined organic extracts were dried (magnesium sulfate) and concentrated in vacuo. Chromatography over silica eluting with 0-80% ethyl acetate/hexane afforded 2-{2-[4-(5-fluoropyridin-2-yl)phenyl]-1-hydroxy-1-methylethyl}-N,N-dimethyl-4-[2-methyl-2-(trifluoromethyl)but-3-en-1-yl]-1H-imidazole-1-sulfonamide.
Workup
- customthe reaction mixture was quenched with water
- extractionextracted with methylene chloride and ethyl acetate
- dry with materialThe combined organic extracts were dried (magnesium sulfate)
- concentrationconcentrated in vacuo
Sources & evidence
- ORD record
- ord-d1d220d7dd9540c7ad884720ef4c6c77
- Source dataset
- uspto-grants-2012_01
- Patent number
- US08106070B2
Reaction notes
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