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Tert-butyl 2,2-dimethyl-3-[2-methyl-4-[5-[4-(trifluoromethyl)-1-(2-trimethylsilylethoxymethyl)-imidazol-2-yl]-2-pyridyl]phenoxy]propanoate → 2,2-dimethyl-3-[2-methyl-4-[5-[5-(trifluoromethyl)-1H-imidazol-2-yl]-2-pyridyl]phenoxy]propanoic acid

HRID 623880
ノート
印刷プレビュー

反応式

HRID 623880 の反応式
[CH3:1][C:2]([CH3:42])([CH2:10][O:11][C:12]1[CH:17]=[CH:16][C:15]([C:18]2[CH:23]=[CH:22][C:21]([C:24]3[N:25](COCC[Si](C)(C)C)[CH:26]=[C:27]([C:29]([F:32])([F:31])[F:30])[N:28]=3)=[CH:20][N:19]=2)=[CH:14][C:13]=1[CH3:41])[C:3]([O:5]C(C)(C)C)=[O:4]>FC(F)(F)C(O)=O.O>[CH3:1][C:2]([CH3:42])([CH2:10][O:11][C:12]1[CH:17]=[CH:16][C:15]([C:18]2[CH:23]=[CH:22][C:21]([C:24]3[NH:28][C:27]([C:29]([F:32])([F:30])[F:31])=[CH:26][N:25]=3)=[CH:20][N:19]=2)=[CH:14][C:13]=1[CH3:41])[C:3]([OH:5])=[O:4]
参加物実験手順後処理出典と根拠反応ノート

参加物

4

反応物 1

HCID 86698168Tert-butyl 2,2-dimethyl-3-[2-methyl-4-[5-[4-(trifluoromethyl)-1-(2-trimethylsilylethoxymethyl)-imidazol-2-yl]-2-pyridyl]phenoxy]propanoate

生成物 1

HCID 679754222,2-dimethyl-3-[2-methyl-4-[5-[5-(trifluoromethyl)-1H-imidazol-2-yl]-2-pyridyl]phenoxy]propanoic acid収率 82.9%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6422Trifluoroacetic acid溶媒

実験手順

In trifluoroacetic acid (5 mL) and water (0.5 mL) was dissolved tert-butyl 2,2-dimethyl-3-[2-methyl-4-[5-[4-(trifluoromethyl)-1-(2-trimethylsilylethoxymethyl)-imidazol-2-yl]-2-pyridyl]phenoxy]propanoate (103 mg), and the mixture was stirred at room temperature overnight. The residue obtained by concentrating the reaction mixture under reduced pressure was dissolved in tetrahydrofuran, and 1N aqueous sodium hydroxide solution was added to the mixture to adjust a pH thereof to 7. To the mixture were added 0.1N phosphate buffer, ethyl acetate and water, and the liquids were separated. The organic layer was separated, dried over anhydrous sodium sulfate, and ether was added to the residue obtained by concentrating the solution under reduced pressure to pulverize the precipitates to obtain 2,2-dimethyl-3-[2-methyl-4-[5-[5-(trifluoromethyl)-1H-imidazol-2-yl]-2-pyridyl]phenoxy]propanoic acid (59.1 mg).

後処理

  1. customThe residue obtained
  2. concentrationby concentrating the reaction mixture under reduced pressure
  3. dissolutionwas dissolved in tetrahydrofuran
  4. addition1N aqueous sodium hydroxide solution was added to the mixture
  5. additionTo the mixture were added 0.1N phosphate buffer, ethyl acetate and water
  6. customthe liquids were separated
  7. customThe organic layer was separated
  8. dry with materialdried over anhydrous sodium sulfate, and ether
  9. additionwas added to the residue
  10. customobtained
  11. concentrationby concentrating the solution under reduced pressure
  12. customprecipitates

出典と根拠

ORDレコード
ord-b70eb4fabf764161b4da230eaa681da3
出典データセット
uspto-grants-2016_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09302996B2

反応ノート

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