Sodium hydride → HCID 67397601, compound

HRID 1426732Notes

Reaction equation

HRID 1426732 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.[O:41]1[CH:45]=[CH:44][CH:43]=[C:42]1[S:46](Cl)(=[O:48])=[O:47]>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:42]2[O:41][CH:45]=[CH:44][CH:43]=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 2795072Furan-2-sulfonyl ChlorideHCID 67176761tert-butyl {[4-fluoro-5-(2-fluoropyridin-3-yl)-1H-pyrrol-3-yl]methyl}methylcarbamate

Product 1

HCID 67397601HCID 67397601, compoundYield 87%

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 dropwise a solution of tert-butyl {[5-(2-fluoropyridin-3-yl)-4-fluoro-1H-pyrrol-3-yl]methyl}methylcarbamate (200 mg) in tetrahydrofuran (1 mL), 15-crown-5 (205 mg) and 2-furansulfonyl chloride (132 mg) under ice-cooling and the mixture was stirred for 1 hr and half. 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→2:1) to give the title compound as a pale-yellow oil (yield 243 mg, 87%).

Workup

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

Sources & evidence

ORD record
ord-9d5c686ccf78482699b3fd88d08ef5cf
Source dataset
uspto-grants-2015_01
Patent number
US08933105B2

Reaction notes

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