Sodium hydride → HCID 86624001, compound

HRID 1426757Notes

Reaction equation

HRID 1426757 reaction equation
[H-].[Na+].C1OCCOCCOCCOCCOC1.[F:18][C:19]1[C:20]([CH2:31][N:32]([CH3:40])[C:33](=[O:39])[O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[CH:21][NH:22][C:23]=1[C:24]1[C:25]([F:30])=[N:26][CH:27]=[CH:28][CH:29]=1.[Cl:41][C:42]1[C:47]([S:48](Cl)(=[O:50])=[O:49])=[CH:46][CH:45]=[CH:44][N:43]=1>O1CCCC1.O>[Cl:41][C:42]1[C:47]([S:48]([N:22]2[C:23]([C:24]3[C:25]([F:30])=[N:26][CH:27]=[CH:28][CH:29]=3)=[C:19]([F:18])[C:20]([CH2:31][N:32]([CH3:40])[C:33](=[O:39])[O:34][C:35]([CH3:36])([CH3:37])[CH3:38])=[CH:21]2)(=[O:50])=[O:49])=[CH:46][CH:45]=[CH:44][N:43]=1

Participants

7

Reactant 4

HCID 24758Sodium hydrideHCID 3633615-Crown-5HCID 102199682-Chloropyridine-3-sulfonyl chlorideHCID 67176761tert-butyl {[4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl]methyl}methylcarbamate

Product 1

HCID 86624001HCID 86624001, compoundYield 91%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent2×

Procedure

To a suspension of sodium hydride (60% in oil, 39 mg) in tetrahydrofuran (6 mL) were added dropwise 15-crown-5 (0.19 mL), a solution of tert-butyl {[4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl]methyl}methylcarbamate (243 mg) in tetrahydrofuran (1 mL) and 2-chloropyridine-3-sulfonyl chloride (239 mg) under ice-cooling, and the mixture was stirred for 0.5 hr. The reaction mixture was diluted with water, and extracted with ethyl acetate. The separated aqueous layer was extracted again with ethyl acetate. The combined organic layer 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=4:1→3:7) to give the title compound as a pale-yellow oil (yield 340 mg, 91%).

Workup

  1. extractionextracted with ethyl acetate
  2. extractionThe separated aqueous layer was extracted again with ethyl acetate
  3. washThe combined organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=4:1→3:7)

Sources & evidence

ORD record
ord-6a5bf37dcd334ad596d5ffe517d19986
Source dataset
uspto-grants-2015_01
Patent number
US08933105B2

Reaction notes

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