Potassium Carbonate → ethyl 8-(3,4-difluorophenoxy)-3-[6-methoxy-5-(4-methyl-1H-imidazol-1-yl)pyridin-2-yl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate

HRID 71186

反応式

HRID 71186 の反応式
[F:1][C:2]1[CH:3]=[C:4]([OH:9])[CH:5]=[CH:6][C:7]=1[F:8].C(=O)([O-])[O-].[K+].[K+].Cl[C:17]1([C:40]([O:42][CH2:43][CH3:44])=[O:41])[CH2:22][CH2:21][CH2:20][N:19]2[C:23]([C:26]3[CH:31]=[CH:30][C:29]([N:32]4[CH:36]=[C:35]([CH3:37])[N:34]=[CH:33]4)=[C:28]([O:38][CH3:39])[N:27]=3)=[N:24][N:25]=[C:18]12>CN(C=O)C.C(OCC)(=O)C.[Cl-].[NH4+]>[F:1][C:2]1[CH:3]=[C:4]([CH:5]=[CH:6][C:7]=1[F:8])[O:9][C:17]1([C:40]([O:42][CH2:43][CH3:44])=[O:41])[CH2:22][CH2:21][CH2:20][N:19]2[C:23]([C:26]3[CH:31]=[CH:30][C:29]([N:32]4[CH:36]=[C:35]([CH3:37])[N:34]=[CH:33]4)=[C:28]([O:38][CH3:39])[N:27]=3)=[N:24][N:25]=[C:18]12

参加物

7

反応物 3

HCID 11430Potassium CarbonateHCID 759273,4-DifluorophenolHCID 66607848ethyl 8-chloro-3-[6-methoxy-5-(4-methyl-1H-imidazol-1-yl)pyridin-2-yl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate

生成物 1

HCID 66608451ethyl 8-(3,4-difluorophenoxy)-3-[6-methoxy-5-(4-methyl-1H-imidazol-1-yl)pyridin-2-yl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate収率 49.9%

試薬・触媒・溶媒 3

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒HCID 25517Ammonium Chloride溶媒

反応条件

温度
100 °C

実験手順

To a mixture of 3,4-difluorophenol (59 mg) and potassium carbonate (0.18 g) in DMF (4 mL) was added ethyl 8-chloro-3-[6-methoxy-5-(4-methyl-1H-imidazol-1-yl)pyridin-2-yl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate (0.18 g) at room temperature, and the mixture was stirred at 100° C. for 30 min. The reaction mixture was cooled to room temperature, and diluted with ethyl acetate and saturated aqueous ammonium chloride solution, the mixture was washed with saturated brine, and dried over anhydrous magnesium 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 (0.11 g).

後処理

  1. temperatureThe reaction mixture was cooled to room temperature
  2. washthe mixture was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

出典と根拠

ORDレコード
ord-0b7c7b3ab34c432fba5d4a5e74ce8bf6
出典データセット
uspto-grants-2014_09
特許番号
US08822699B2

関連ノート

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