8-Hydroxyquinoline → tert-Butyl-7-(4-(4-chloro-2-methoxyphenyl)-2-oxopyridin-1(2H)-yl)-9-methyl-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylate

HRID 930763ノート

反応式

HRID 930763 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:20][CH2:19][C:18]2[C:17]3[C:12](=[CH:13][C:14](Br)=[CH:15][CH:16]=3)[N:11]([CH3:22])[C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Cl:23][C:24]1[CH:29]=[CH:28][C:27]([C:30]2[CH:35]=[CH:34][NH:33][C:32](=[O:36])[CH:31]=2)=[C:26]([O:37][CH3:38])[CH:25]=1.C([O-])([O-])=O.[Cs+].[Cs+].OC1C=CC=C2C=1N=CC=C2>CS(C)=O.[Cu](I)I>[C:1]([O:5][C:6]([N:8]1[CH2:20][CH2:19][C:18]2[C:17]3[C:12](=[CH:13][C:14]([N:33]4[CH:34]=[CH:35][C:30]([C:27]5[CH:28]=[CH:29][C:24]([Cl:23])=[CH:25][C:26]=5[O:37][CH3:38])=[CH:31][C:32]4=[O:36])=[CH:15][CH:16]=3)[N:11]([CH3:22])[C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

参加物

7

反応物 4

HCID 19238-HydroxyquinolineHCID 10796Cesium carbonateHCID 532180124-(4-Chloro-2-methoxyphenyl)pyridin-2(1H)-oneHCID 57950468tert-butyl 7-bromo-9-methyl-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole-2-carboxylate

生成物 1

HCID 57950380tert-Butyl-7-(4-(4-chloro-2-methoxyphenyl)-2-oxopyridin-1(2H)-yl)-9-methyl-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylate収率 54.6%

試薬・触媒・溶媒 2

HCID 83717Copper iodide触媒HCID 679Dimethyl Sulfoxide溶媒

反応条件

温度
130 °C

実験手順

tert-Butyl-7-bromo-9-methyl-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylate (0.19 g, 0.81 mmol), 4-(4-chloro-2-methoxyphenyl)pyridin-2(1H)-one (0.30 g, 0.81 mmol), Cs2CO3 (0.29 g, 0.89 mmol) were diluted with DMSO (3.3 mL), and argon was bubbled through the suspension for 10 min. 8-Hydroxyquinoline (59 mg, 0.41 mmol) and copper iodide (0.18 g, 0.97 mmol) were added, and the resulting suspension was placed under vacuum for 15 min. The system was flushed with argon, and the degassing/argon flushing process was repeated a total of three times. The reaction mixture was heated at 130° C. for 18 h and stirred under argon. The suspension was cooled. A solution of 20% NH4OH in MeOH (40 mL) was added, and the resulting mixture was stirred for 1 h. The mixture was diluted with CH2Cl2 and filtered through celite. The filtrate was washed with brine (2×50 mL), dried over Na2SO4, and concentrated under reduced pressure. Flash chromatography (40 g ISCO (1:1 hexanes/EtOAc)/(80:18:2 CH2Cl2/MeOH/NH4OH), 100:0 for 3 column volumes then increase to 50:50 over 10 column volumes and hold for 10 column volumes) gave the title compound (0.23 g, 54%) as an olive-green film: 1H NMR (500 MHz, DMSO-d6) δ 7.65 (d, J=7.0 Hz, 1H), 7.54 (d, J=2.0 Hz, 1H), 7.50 (d, J=8.0 Hz, 1H), 7.44 (d, J=8.0 Hz, 1H), 7.25 (d, J=1.5 Hz, 1H), 7.13 (dd, J=8.0, 1.5 Hz, 1H), 7.02 (dd, J=8.0, 1.5 Hz, 1H), 6.55 (d, J=2.0 Hz, 1H), 6.54 (dd, J=7.0, 1.5 Hz, 1H), 4.64 (s, 2H), 3.87 (s, 3H), 3.68-3.66 (m, 5H), 2.74-2.72 (m, 2H), 1.46 (s, 9H).

後処理

  1. customwas bubbled through the suspension for 10 min
  2. customThe system was flushed with argon
  3. temperatureThe suspension was cooled
  4. additionA solution of 20% NH4OH in MeOH (40 mL) was added
  5. stirringthe resulting mixture was stirred for 1 h
  6. additionThe mixture was diluted with CH2Cl2
  7. filtrationfiltered through celite
  8. washThe filtrate was washed with brine (2×50 mL)
  9. dry with materialdried over Na2SO4
  10. concentrationconcentrated under reduced pressure
  11. temperatureFlash chromatography (40 g ISCO (1:1 hexanes/EtOAc)/(80:18:2 CH2Cl2/MeOH/NH4OH), 100:0 for 3 column volumes then increase to 50:50 over 10 column volumes

出典と根拠

ORDレコード
ord-1861ca5c67c3440da627fe50959f397c
出典データセット
uspto-grants-2016_03
特許番号
US09296743B2

反応ノート

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