1-(4-Pyridyl)piperazine → Methyl 4-[2-[4-(4-pyridyl)piperazin-1-yl]-2,2-dimethylacetyl]phenoxyacetate

HRID 266752

反応式

HRID 266752 の反応式
[CH3:1][C:2](Br)([CH3:17])[C:3]([C:5]1[CH:16]=[CH:15][C:8]([O:9][CH2:10][C:11]([O:13][CH3:14])=[O:12])=[CH:7][CH:6]=1)=[O:4].[N:19]1[CH:24]=[CH:23][C:22]([N:25]2[CH2:30][CH2:29][NH:28][CH2:27][CH2:26]2)=[CH:21][CH:20]=1>C(#N)C>[N:19]1[CH:24]=[CH:23][C:22]([N:25]2[CH2:26][CH2:27][N:28]([C:2]([CH3:17])([CH3:1])[C:3]([C:5]3[CH:16]=[CH:15][C:8]([O:9][CH2:10][C:11]([O:13][CH3:14])=[O:12])=[CH:7][CH:6]=3)=[O:4])[CH2:29][CH2:30]2)=[CH:21][CH:20]=1

参加物

4

反応物 2

HCID 705171-(4-Pyridyl)piperazineHCID 18918473Methyl 4-(2,2-dimethylbromoacetyl)phenoxyacetate

生成物 1

HCID 18918600Methyl 4-[2-[4-(4-pyridyl)piperazin-1-yl]-2,2-dimethylacetyl]phenoxyacetate

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

実験手順

Methyl 4-(2,2-dimethylbromoacetyl)phenoxyacetate (1.58 g) was added to a stirred solution of 1-(4-pyridyl)piperazine (1.63 g) in acetonitrile (40 ml). After 34 days, the solid formed was removed by filtration and the filtrate evaporated to give an oil. Purification by flash chromatography on silica, eluting with 0.5 to 4.0% v/v methanol/dichloromethane gave the title compound, 240 mg, as a white foam: NMR (d6DMSO) δ 8.49 (2H, d), 8.12 (2H, d), 6.96 (2H, d), 6.77 (2H, d), 4.87 (2H, s), 3.69 (3H, s), 3.28 (4H, t), 2.58 (4H, t), 1.25 (6H, s); m/e 398 (M+H)+ ; calculated for C22H27N3O4.0.25H2O: C, 65.7; H, 6.8; N, 10.4. found: C, 65.3; H, 6.9; N, 10.4%.

後処理

  1. customthe solid formed
  2. customwas removed by filtration
  3. customthe filtrate evaporated
  4. customto give an oil
  5. customPurification by flash chromatography on silica
  6. washeluting with 0.5 to 4.0% v/v methanol/dichloromethane

出典と根拠

ORDレコード
ord-0c6b920ba89d439a8459f8ce52d93d10
出典データセット
uspto-grants-1997_07
特許番号
US05652242

関連ノート

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