Sodium hydride → HCID 67397876, compound

HRID 1426733Notes

Reaction equation

HRID 1426733 reaction equation
[H-].[Na+].[F:3][C:4]1[C:9]([C:10]2[NH:14][CH:13]=[C:12]([CH2:15][N:16]([CH3:24])[C:17](=[O:23])[O:18][C:19]([CH3:22])([CH3:21])[CH3:20])[C:11]=2[F:25])=[CH:8][CH:7]=[CH:6][N:5]=1.C1OCCOCCOCCOCCOC1.[S:41]1[CH:45]=[CH:44][C:43]([S:46](Cl)(=[O:48])=[O:47])=[CH:42]1>O1CCCC1.O>[F:25][C:11]1[C:12]([CH2:15][N:16]([CH3:24])[C:17](=[O:23])[O:18][C:19]([CH3:21])([CH3:22])[CH3:20])=[CH:13][N:14]([S:46]([C:43]2[CH:44]=[CH:45][S:41][CH:42]=2)(=[O:48])=[O:47])[C:10]=1[C:9]1[C:4]([F:3])=[N:5][CH:6]=[CH:7][CH:8]=1

Participants

7

Reactant 4

HCID 24758Sodium hydrideHCID 3633615-Crown-5HCID 2776378Thiophene-3-sulfonyl ChlorideHCID 67176761tert-butyl {[4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl]methyl}methylcarbamate

Product 1

HCID 67397876HCID 67397876, compoundYield 91%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent2×

Procedure

To a suspension of sodium hydride (60% in oil, 37 mg) in tetrahydrofuran (2 mL) were added a solution of tert-butyl {[5-(2-fluoropyridin-3-yl)-4-fluoro-1H-pyrrol-3-yl]methyl}methylcarbamate in tetrahydrofuran (1 mL), 15-crown-5 (205 mg) and 3-thiophenesulfonyl chloride (136 mg) at room temperature and the mixture was stirred for 2 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 basic silica gel column chromatography (eluent: hexane-ethyl acetate=6:1→3:2) to give the title compound as a pale-yellow oil (yield 264 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 basic silica gel column chromatography (eluent: hexane-ethyl acetate=6:1→3:2)

Sources & evidence

ORD record
ord-89ab7316e4f14394910c661396f6956d
Source dataset
uspto-grants-2015_01
Patent number
US08933105B2

Reaction notes

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