7-硝基吲唑 → 1-[4-(4-Fluoro-phenyl)-piperazin-1-yl]-2-[7-nitro-indazol-1-yl]-ethanone

HRID 270915

反应方程式

HRID 270915 反应方程式
Cl[CH2:2][C:3]([N:5]1[CH2:10][CH2:9][N:8]([C:11]2[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=2)[CH2:7][CH2:6]1)=[O:4].C(=O)([O-])[O-].[K+].[K+].[N+:24]([C:27]1[CH:28]=[CH:29][CH:30]=[C:31]2[C:35]=1[NH:34][N:33]=[CH:32]2)([O-:26])=[O:25]>CN(C=O)C>[F:17][C:14]1[CH:15]=[CH:16][C:11]([N:8]2[CH2:9][CH2:10][N:5]([C:3](=[O:4])[CH2:2][N:34]3[C:35]4[C:31](=[CH:30][CH:29]=[CH:28][C:27]=4[N+:24]([O-:26])=[O:25])[CH:32]=[N:33]3)[CH2:6][CH2:7]2)=[CH:12][CH:13]=1

参与物

5

反应物 3

HCID 18937-硝基吲唑HCID 11430碳酸钾HCID 18485112-氯-1-[4-(4-氟-苯基)-哌嗪-1-基]-乙酮

产物 1

HCID 210710111-[4-(4-Fluoro-phenyl)-piperazin-1-yl]-2-[7-nitro-indazol-1-yl]-ethanone

试剂、催化剂与溶剂 1

HCID 6228N,N-二甲基甲酰胺溶剂2 次

实验过程

2-Chloro-1-[4-(4-fluoro-phenyl)-piperazin-1-yl]-ethanone (0.834 g, 3.3 mmol) was taken in dry DMF (15 mL) and dry potassium carbonate (1.6 g, 11.6 mmol) was added to it and the reaction mixture stirred at room temperature for 1 h under nitrogen. 7-Nitro-1H-indazole (0.5 g, 2.9 mmol) in DMF (2 mL) was then added to the mixture through a syringe. The reaction was then heated at 70° C. for 14 h, cooled and then quenched with water and extracted with ethyl acetate. Drying of the organic layer with Na2SO4 followed by concentration afforded material that was purified on neutral alumina column (pet ether/ethyl acetate). The resulting solid was recrystallized from DCM/pet ether to obtain pure product as a pale yellow solid.

后处理

  1. temperatureThe reaction was then heated at 70° C. for 14 h
  2. temperaturecooled
  3. customquenched with water
  4. extractionextracted with ethyl acetate
  5. dry with materialDrying of the organic layer with Na2SO4
  6. concentrationfollowed by concentration
  7. customafforded material that
  8. customwas purified on neutral alumina column (pet ether/ethyl acetate)
  9. customThe resulting solid was recrystallized from DCM/pet ether
  10. customto obtain pure product as a pale yellow solid

来源与证据

ORD记录
ord-91b5f38303c343dbbc8e68d65877a81a
来源数据集
uspto-grants-2008_11
专利号
US07449576B1

关联笔记

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