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Dimethylformamide → Ethyl 8-(3,4-difluorophenoxy)-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate

HRID 71168
ノート
印刷プレビュー

反応式

HRID 71168 の反応式
Cl[C:2]1([C:25]([O:27][CH2:28][CH3:29])=[O:26])[CH2:7][CH2:6][CH2:5][N:4]2[C:8]([C:11]3[CH:16]=[CH:15][C:14]([C:17]4[O:21][C:20]([CH3:22])=[N:19][CH:18]=4)=[C:13]([O:23][CH3:24])[CH:12]=3)=[N:9][N:10]=[C:3]12.[F:30][C:31]1[CH:32]=[C:33]([OH:38])[CH:34]=[CH:35][C:36]=1[F:37].C(=O)([O-])[O-].[K+].[K+].CN(C=O)C>O.C(OCC)(=O)C>[F:30][C:31]1[CH:32]=[C:33]([CH:34]=[CH:35][C:36]=1[F:37])[O:38][C:2]1([C:25]([O:27][CH2:28][CH3:29])=[O:26])[CH2:7][CH2:6][CH2:5][N:4]2[C:8]([C:11]3[CH:16]=[CH:15][C:14]([C:17]4[O:21][C:20]([CH3:22])=[N:19][CH:18]=4)=[C:13]([O:23][CH3:24])[CH:12]=3)=[N:9][N:10]=[C:3]12
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 759273,4-DifluorophenolHCID 66604255Ethyl 8-chloro-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate

生成物 1

HCID 66609151Ethyl 8-(3,4-difluorophenoxy)-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate
収率 50.6%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
90 °C

実験手順

A mixture of ethyl 8-chloro-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate (2000 mg), 3,4-difluorophenol (655 mg), potassium carbonate (1989 mg) and DMF (10 mL) was stirred at 90° C. for 30 min, and the mixture was allowed to cool to room temperature. Ethyl acetate and water were added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (1240 mg).

後処理

  1. temperatureto cool to room temperature
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract was washed with water and saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-97b6998ad26749e0ab6ee739c7b0f1a0
出典データセット
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08822699B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート