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

HRID 1012514

反応式

HRID 1012514 の反応式
[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].[F:26][CH:27]([F:44])[O:28][C:29]1[CH:34]=[CH:33][C:32](B2OC(C)(C)C(C)(C)O2)=[CH:31][CH:30]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(COC)OC.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>[C:1]([O:5][C:6](=[O:25])[N:7]([CH2:9][C:10]1[CH:14]=[C:13]([C:32]2[CH:33]=[CH:34][C:29]([O:28][CH:27]([F:44])[F:26])=[CH:30][CH:31]=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)[CH3:8])([CH3:4])([CH3:3])[CH3:2]

参加物

7

反応物 3

HCID 10340Sodium CarbonateHCID 220323032-(4-(Difluoromethoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneHCID 57522258tert-Butyl {[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate

生成物 1

HCID 66974614tert-butyl({5-[4-(difluoromethoxy)phenyl]-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl}methyl)methylcarbamate収率 111.5%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒2 回HCID 80711,2-Dimethoxyethane溶媒

実験手順

tert-Butyl{[5-bromo-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]methyl}methylcarbamate (430 mg), 2-[4-(difluoromethoxy)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (348 mg), sodium carbonate (254 mg) and tetrakis(triphenylphosphine)palladium (174 mg) were suspended in dimethoxyethane (10 mL) and water (4 mL), and the mixture was stirred under a nitrogen atmosphere at 105° C. for 1 hr. The reaction mixture was allowed to cool 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 550 mg, quantitative yield).

後処理

  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)

出典と根拠

ORDレコード
ord-a03915e0f8e94954ac6d72c1b41e51db
出典データセット
uspto-grants-2011_07
特許番号
US07977488B2

関連ノート

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