Sodium Carbonate → tert-butyl{[5-(4-methyl-3-thienyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate

HRID 1962537Notes

Reaction equation

HRID 1962537 reaction equation
[C:1]([O:5][C:6](=[O:25])[N:7]([CH2:9][C:10]1[CH:14]=[C:13](Br)[N:12]([S:16]([C:19]2[CH:20]=[N:21][CH:22]=[CH:23][CH:24]=2)(=[O:18])=[O:17])[CH:11]=1)[CH3:8])([CH3:4])([CH3:3])[CH3:2].[CH3:26][C:27]1[C:28](B(O)O)=[CH:29][S:30][CH:31]=1.C(=O)([O-])[O-].[Na+].[Na+]>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>[CH3:8][N:7]([CH2:9][C:10]1[CH:14]=[C:13]([C:28]2[C:27]([CH3:26])=[CH:31][S:30][CH:29]=2)[N:12]([S:16]([C:19]2[CH:20]=[N:21][CH:22]=[CH:23][CH:24]=2)(=[O:18])=[O:17])[CH:11]=1)[C:6](=[O:25])[O:5][C:1]([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 10340Sodium CarbonateHCID 50839314-Methyl-3-thiopheneboronic acidHCID 57522258tert-Butyl {[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate

Product 1

HCID 66925066tert-butyl{[5-(4-methyl-3-thienyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate

Reagents, catalysts & solvents 1

HCID 178418397HCID 178418397, compoundCatalyst

Procedure

By a similar operation as in Reference Example 79 and using tert-butyl{[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate (300 mg), (4-methyl-3-thienyl)boronic acid (198 mg), tetrakis(triphenylphosphine)palladium (40 mg) and sodium carbonate (222 mg), the title compound was obtained as a pale-yellow oil (yield 200 mg, 64%). More specifically, a suspension of tert-butyl{[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate (300 mg), (4-methyl-3-thienyl)boronic acid (198 mg), tetrakis(triphenylphosphine)palladium (40 mg) and sodium carbonate (222 mg) in 1,2-dimethoxyethane (10 mL) and water (7.5 mL) was stirred at 105° C. for 18 hr. The reaction mixture was allowed to cool to room temperature, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with saturated aqueous sodium hydrogencarbonate solution, water and 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=6:1→3:1) to give the title compound as a pale-yellow oil (yield 200 mg, 64%).

Sources & evidence

ORD record
ord-ec077d3291614df488a1d36554537305
Source dataset
uspto-grants-2013_04
Patent number
US08415368B2

Reaction notes

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