Sodium Carbonate → HCID 86623986, compound

HRID 1426669Notes

Reaction equation

HRID 1426669 reaction equation
Br[C:2]1[N:6]([S:7]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([O:16][CH3:17])[CH:11]=2)(=[O:9])=[O:8])[CH:5]=[C:4]([CH2:18][N:19]([CH3:27])[C:20](=[O:26])[O:21][C:22]([CH3:25])([CH3:24])[CH3:23])[CH:3]=1.[F:28][C:29]1[C:34](B(O)O)=[CH:33][CH:32]=[CH:31][N:30]=1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC.O.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>[F:28][C:29]1[C:34]([C:2]2[N:6]([S:7]([C:10]3[CH:15]=[CH:14][CH:13]=[C:12]([O:16][CH3:17])[CH:11]=3)(=[O:9])=[O:8])[CH:5]=[C:4]([CH2:18][N:19]([CH3:27])[C:20](=[O:26])[O:21][C:22]([CH3:25])([CH3:24])[CH3:23])[CH:3]=2)=[CH:33][CH:32]=[CH:31][N:30]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 27832702-Fluoropyridine-3-boronic acidHCID 67395616HCID 67395616, compound

Product 1

HCID 86623986HCID 86623986, compoundYield 64%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent2×HCID 80711,2-DimethoxyethaneSolvent

Procedure

tert-butyl ({5-bromo-1-[(3-methoxyphenyl)sulfonyl]-1H-pyrrol-3-yl}methyl)methylcarbamate (459 mg), (2-fluoropyridin-3-yl)boronic acid (169 mg), sodium carbonate (254 mg), and tetrakis(triphenylphosphine)palladium (173 mg) were suspended in 1,2-dimethoxyethane (10 mL) and water (4 mL), and the mixture was stirred at 105° C. for 2 hr. The reaction mixture was cooled to room temperature, water was added and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=4:1→2:1) to give the title compound as a pale-yellow oil (yield 303 mg, 64%).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=4:1→2:1)

Sources & evidence

ORD record
ord-167ef280386f4afc91f86d72d041d4d0
Source dataset
uspto-grants-2015_01
Patent number
US08933105B2

Reaction notes

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