Sodium hydride → HCID 67398917, compound

HRID 1426729Notes

Reaction equation

HRID 1426729 reaction equation
[F:1][C:2]1[C:3]([CH2:14][N:15]([CH3:23])[C:16](=[O:22])[O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[CH:4][NH:5][C:6]=1[C:7]1[C:8]([F:13])=[N:9][CH:10]=[CH:11][CH:12]=1.[H-].[Na+].C1OCCOCCOCCOCCOC1.[F:41][C:42]1[CH:47]=[CH:46][CH:45]=[C:44]([F:48])[C:43]=1[S:49](Cl)(=[O:51])=[O:50]>O1CCCC1.O>[F:41][C:42]1[CH:47]=[CH:46][CH:45]=[C:44]([F:48])[C:43]=1[S:49]([N:5]1[C:6]([C:7]2[C:8]([F:13])=[N:9][CH:10]=[CH:11][CH:12]=2)=[C:2]([F:1])[C:3]([CH2:14][N:15]([CH3:23])[C:16](=[O:22])[O:17][C:18]([CH3:19])([CH3:20])[CH3:21])=[CH:4]1)(=[O:51])=[O:50]

Participants

7

Reactant 4

HCID 24758Sodium hydrideHCID 3633615-Crown-5HCID 27342712,6-Difluorobenzenesulfonyl chlorideHCID 67176761tert-butyl {[4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl]methyl}methylcarbamate

Product 1

HCID 67398917HCID 67398917, compoundYield 86%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of tert-butyl {[4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl]methyl}methylcarbamate (324 mg) in tetrahydrofuran (20 mL) was added sodium hydride (60% in oil, 121 mg) at room temperature and the mixture was stirred for 15 min. 15-Crown-5 (664 mg) was added dropwise, and the mixture was stirred for 5 min. 2,6-Difluorobenzenesulfonyl chloride (320 mg) was added, and the mixture was further stirred for 30 min. The reaction mixture was diluted with water, and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=1:4→2:3) to give the title compound as a colorless oil (yield 430 mg, 86%).

Workup

  1. stirringthe mixture was stirred for 5 min
  2. stirringthe mixture was further stirred for 30 min
  3. extractionextracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=1:4→2:3)

Sources & evidence

ORD record
ord-0406bad833ea4e55a7caaa2164ff9e04
Source dataset
uspto-grants-2015_01
Patent number
US08933105B2

Reaction notes

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