Water → 1-Ethyl-3-[4-(3H-imidazo[4,5-b]pyridin-2-yloxy)phenyl]-1H-pyrazolo[4,3-b]pyridine

HRID 573295ノート

反応式

HRID 573295 の反応式
[CH2:1]([N:3]1[C:11]2[C:6](=[N:7][CH:8]=[CH:9][CH:10]=2)[C:5]([C:12]2[CH:17]=[CH:16][C:15]([O:18][C:19]3[N:27](COCC[Si](C)(C)C)[C:22]4=[N:23][CH:24]=[CH:25][CH:26]=[C:21]4[N:20]=3)=[CH:14][CH:13]=2)=[N:4]1)[CH3:2].CCCC[N+](CCCC)(CCCC)CCCC.[F-].O>C1COCC1>[CH2:1]([N:3]1[C:11]2[C:6](=[N:7][CH:8]=[CH:9][CH:10]=2)[C:5]([C:12]2[CH:17]=[CH:16][C:15]([O:18][C:19]3[NH:27][C:22]4=[N:23][CH:24]=[CH:25][CH:26]=[C:21]4[N:20]=3)=[CH:14][CH:13]=2)=[N:4]1)[CH3:2]

参加物

5

反応物 3

HCID 962WaterHCID 2724141Tetrabutylammonium FluorideHCID 667281621-ethyl-3-[4-(3-{[2-(trimethylsilyl)ethoxy]methyl}-3H-imidazo[4,5-b]pyridin-2-yloxy)phenyl]-1H-pyrazolo[4,3-b]pyridine

生成物 1

HCID 1784630051-Ethyl-3-[4-(3H-imidazo[4,5-b]pyridin-2-yloxy)phenyl]-1H-pyrazolo[4,3-b]pyridine収率 27.3%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
100 °C

実験手順

A mixture of 1-ethyl-3-[4-(3-{[2-(trimethylsilyl)ethoxy]methyl}-3H-imidazo[4,5-b]pyridin-2-yloxy)phenyl]-1H-pyrazolo[4,3-b]pyridine (90 mg), 1 M TBAF in THF (0.74 mL) and THF (2 ml) was heated at 100° C. for 3 h under microwave irradiation. The mixture was stirred at 80° C. overnight. The mixture was poured into water and extracted with AcOEt. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (AcOEt/hexane) to give the title compound (18 mg).

後処理

  1. extractionextracted with AcOEt
  2. washThe organic layer was washed with brine
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by basic silica gel column chromatography (AcOEt/hexane)

出典と根拠

ORDレコード
ord-5cb2fbe52a004876ae7166147f824a1c
出典データセット
uspto-grants-2015_05
特許番号
US09029536B2

反応ノート

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