1,2-Dimethoxyethane → tert-butyl{[5-(2-fluoro-6-methoxyphenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate

HRID 1782340Notes

Reaction equation

HRID 1782340 reaction equation
Br[C:2]1[N:6]([S:7]([C:10]2[CH:11]=[N:12][CH:13]=[CH:14][CH:15]=2)(=[O:9])=[O:8])[CH:5]=[C:4]([CH2:16][N:17]([CH3:25])[C:18](=[O:24])[O:19][C:20]([CH3:23])([CH3:22])[CH3:21])[CH:3]=1.[F:26][C:27]1[CH:32]=[CH:31][CH:30]=[C:29]([O:33][CH3:34])[C:28]=1B(O)O.C(=O)([O-])O.[Na+].COCCOC>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[F:26][C:27]1[CH:32]=[CH:31][CH:30]=[C:29]([O:33][CH3:34])[C:28]=1[C:2]1[N:6]([S:7]([C:10]2[CH:11]=[N:12][CH:13]=[CH:14][CH:15]=2)(=[O:9])=[O:8])[CH:5]=[C:4]([CH2:16][N:17]([CH3:25])[C:18](=[O:24])[O:19][C:20]([CH3:23])([CH3:22])[CH3:21])[CH:3]=1

Participants

7

Reactant 4

HCID 80711,2-DimethoxyethaneHCID 516892Sodium Bicarbonate2×HCID 3294524(2-Fluoro-6-methoxyphenyl)boronic acidHCID 57522258tert-Butyl {[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate

Product 1

HCID 66974539tert-butyl{[5-(2-fluoro-6-methoxyphenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamateYield 21%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

tert-butyl {[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate (431 mg), (2-fluoro-6-methoxyphenyl)boronic acid (256 mg), sodium hydrogencarbonate (253 mg) and tetrakis(triphenylphosphine)palladium (176 mg) were added to a mixture of 1,2-dimethoxyethane (8 mL) and water (2 mL), and the mixture was stirred under a nitrogen atmosphere at 100° C. for 20 hr. The reaction mixture was allowed to cool, a saturated aqueous sodium hydrogencarbonate solution was added, and the mixture was 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=1:1) to give the title compound as a colorless oil (yield 100 mg, 21%).

Workup

  1. temperatureto cool
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract 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=1:1)

Sources & evidence

ORD record
ord-a36f3585c76a4e129ae0ad34d09b0399
Source dataset
uspto-grants-2009_03
Patent number
US07498337B2

Reaction notes

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