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

HRID 1881451Notes

Reaction equation

HRID 1881451 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]=1

Participants

4

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

  1. customthe reaction mixture was quenched with water
  2. extractionextracted with methylene chloride and ethyl acetate
  3. dry with materialThe combined organic extracts were dried (magnesium sulfate)
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-54d9e51a268542f19b868a601f0a2917
Source dataset
uspto-grants-2012_11
Patent number
US08318767B2

Reaction notes

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