Cesium carbonate → 1-[5-Chloro-8-(4-cyclobutylpiperazin-1-yl)quinolin-7-yl]ethanone

HRID 1192619ノート

反応式

HRID 1192619 の反応式
FC(F)(F)S(O[C:7]1[C:8]([C:18](=[O:20])[CH3:19])=[CH:9][C:10]([Cl:17])=[C:11]2[C:16]=1[N:15]=[CH:14][CH:13]=[CH:12]2)(=O)=O.Cl.Cl.[CH:25]1([N:29]2[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)[CH2:28][CH2:27][CH2:26]1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCCC1.ClCCl.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C1C=CC(P(C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:17][C:10]1[CH:9]=[C:8]([C:18](=[O:20])[CH3:19])[C:7]([N:32]2[CH2:33][CH2:34][N:29]([CH:25]3[CH2:28][CH2:27][CH2:26]3)[CH2:30][CH2:31]2)=[C:16]2[C:11]=1[CH:12]=[CH:13][CH:14]=[N:15]2

参加物

8

反応物 3

HCID 10796Cesium carbonateHCID 451567991-Cyclobutylpiperazine dihydrochlorideHCID 58368658HCID 58368658、化合物

生成物 1

HCID 583685411-[5-Chloro-8-(4-cyclobutylpiperazin-1-yl)quinolin-7-yl]ethanone収率 59.2%

試薬・触媒・溶媒 4

HCID 167845palladium(II) acetate触媒HCID 634876Binap, (A+-)-触媒HCID 6344Dichloromethane溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
65 °C

実験手順

A stirred mixture of 7-acetyl-5-chloroquinolin-8-yl trifluoromethanesulfonate (0.12 g, 0.34 mmol, from Example 47, Step 2), 1-cyclobutylpiperazine dihydrochloride (0.087 g, 0.41 mmol), palladium acetate (1.5 mg, 0.0068 mmol), (S)-(−)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (6.3 mg, 0.010 mmol), and cesium carbonate (0.44 g, 1.4 mmol) in tetrahydrofuran (3 mL) was heated at 65° C. overnight. The mixture was cooled, diluted with dichloromethane and filtered. The filtrate was washed with brine, dried over MgSO4 and and evaporated to dryness. The residue was purified on silica gel (eluting with 0 to 10% methanol in dichloromethane) to give the desired product (69.2 mg, 59%). LCMS calculated for C19H23ClN3O (M+H)+: m/z 344.2; Found: 344.1

後処理

  1. temperatureThe mixture was cooled
  2. filtrationfiltered
  3. washThe filtrate was washed with brine
  4. dry with materialdried over MgSO4
  5. customevaporated to dryness
  6. customThe residue was purified on silica gel (eluting with 0 to 10% methanol in dichloromethane)

出典と根拠

ORDレコード
ord-8b09538581da49dcb0cd289e540b1243
出典データセット
uspto-grants-2014_03
特許番号
US08680108B2

反応ノート

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