Ethyl bromoacetate → [4-(4'-Trifluoromethylbiphenyl-2-carbonylamino)piperidin-1-yl]acetic acid ethyl ester

HRID 494403

反応式

HRID 494403 の反応式
[F:1][C:2]([F:25])([F:24])[C:3]1[CH:8]=[CH:7][C:6]([C:9]2[C:10]([C:15]([NH:17][CH:18]3[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]3)=[O:16])=[CH:11][CH:12]=[CH:13][CH:14]=2)=[CH:5][CH:4]=1.C(=O)([O-])[O-].[K+].[K+].[CH2:32]([O:34][C:35](=[O:38])[CH2:36]Br)[CH3:33]>CN(C)C=O>[CH2:32]([O:34][C:35](=[O:38])[CH2:36][N:21]1[CH2:20][CH2:19][CH:18]([NH:17][C:15]([C:10]2[C:9]([C:6]3[CH:5]=[CH:4][C:3]([C:2]([F:1])([F:24])[F:25])=[CH:8][CH:7]=3)=[CH:14][CH:13]=[CH:12][CH:11]=2)=[O:16])[CH2:23][CH2:22]1)[CH3:33]

参加物

5

反応条件

温度
90 °C

実験手順

To a solution of 4-(4′-trifluoromethylbiphenyl-2-carbonylamino)piperidine (1.03 g) obtained in Example 8b) in dimethylformamide (5 mL) were added potassium carbonate (276 mg) and bromoacetic acid ethyl ester (223 μL). The mixture was stirred overnight at ambient temperature of 90° C., and then concentrated in vacuo. The residue was distributed with water and chloroform, and the aqueous layer was further extracted with chloroform. The organic layers were combined, washed with saturated brine, dried over sodium sulfate, concentrated in vacuo and purified by column chromatography on silica gel with chloroform:methanol=30:1 to give the title compound (598 mg).

後処理

  1. concentrationconcentrated in vacuo
  2. extractionthe aqueous layer was further extracted with chloroform
  3. washwashed with saturated brine
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated in vacuo
  6. custompurified by column chromatography on silica gel with chloroform

出典と根拠

ORDレコード
ord-6f2ce5d29b81410d8be4796435f060ef
出典データセット
uspto-grants-2009_05
特許番号
US07538140B2

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