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Sodium Bicarbonate → 4-isobutoxy-N-(3-methyl-1-(quinolin-5-yl)-1H-pyrazol-5-yl)benzenesulfonamide

HRID 1406553
ノート
印刷プレビュー

反応式

HRID 1406553 の反応式
[CH2:1]([O:5][C:6]1[CH:11]=[CH:10][C:9]([S:12](Cl)(=[O:14])=[O:13])=[CH:8][CH:7]=1)[CH:2]([CH3:4])[CH3:3].[CH3:16][C:17]1[CH:21]=[C:20]([NH2:22])[N:19]([C:23]2[CH:32]=[CH:31][CH:30]=[C:29]3[C:24]=2[CH:25]=[CH:26][CH:27]=[N:28]3)[N:18]=1.C(=O)(O)[O-].[Na+]>CN(C)C1C=CN=CC=1.N1C=CC=CC=1>[CH2:1]([O:5][C:6]1[CH:11]=[CH:10][C:9]([S:12]([NH:22][C:20]2[N:19]([C:23]3[CH:32]=[CH:31][CH:30]=[C:29]4[C:24]=3[CH:25]=[CH:26][CH:27]=[N:28]4)[N:18]=[C:17]([CH3:16])[CH:21]=2)(=[O:14])=[O:13])=[CH:8][CH:7]=1)[CH:2]([CH3:4])[CH3:3]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 516892Sodium BicarbonateHCID 125711294-(2-Methylpropoxy)benzene-1-sulfonyl chlorideHCID 866945143-methyl-1-(quinolin-5-yl)-1H-pyrazol-5-amine

生成物 1

HCID 866945174-isobutoxy-N-(3-methyl-1-(quinolin-5-yl)-1H-pyrazol-5-yl)benzenesulfonamide収率 43%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒
HCID 1049Pyridine溶媒

反応条件

温度
80 °C

実験手順

A stirred mixture of 4-isobutoxybenzene-1-sulfonyl chloride (0.060 g, 0.24 mmol), 3-methyl-1-(quinolin-5-yl)-1H-pyrazol-5-amine (prepared from Example 4 step b, 0.050 g, 0.22 mmol), and 4-(dimethylamino)pyridine (DMAP, 0.025 g, 0.20 mmol) in pyridine (2 mL) was heated at 80° C. for 2 h. After cooling to room temperature, aqueous saturated sodium bicarbonate was added to the reaction mixture and extracted with dichloromethane. The organic layer was dried (Na2SO4), filtered, and concentrated in vacuo. The crude residue was purified by flash chromatography (SiO2, 2-5% methanol in dichloromethane), followed by reverse phase HPLC(C18 column, acetonitrile-H2O with 0.1% TFA as eluent) to give the title compound as a white solid (0.041 g, 0.094 mmol, 43%). 1H NMR (400 MHz, CDCl3) δ 8.84 (d, J=4.0 Hz, 1H), 8.11 (d, J=8.0 Hz, 1H), 7.63 (t, J=8.0 Hz, 1H), 7.48-7.44 (m, 2H), 7.23 (d, J=4.0, Hz, 1H), 7.21 (d, J=4.0, Hz, 1H), 7.15 (dd, J=1.2, 7.2 Hz, 1H), 6.72 (d, J=2.4 Hz, 1H), 6.70 (d, J=2.4 Hz, 1H), 6.25 (s, 1H), 3.72 (dd, J=2.0, 6.4 Hz, 2H), 2.33 (s, 3H), 2.13 (hept, J=6.4 Hz, 1H), 1.08 (dd, J=2.4, 6.4 Hz, 6H); MS: (ES) m/z calculated for C23H25N4O2S [M+H]+ 437.2. found 437.0.

後処理

  1. temperatureAfter cooling to room temperature
  2. extractionextracted with dichloromethane
  3. dry with materialThe organic layer was dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude residue was purified by flash chromatography (SiO2, 2-5% methanol in dichloromethane)

出典と根拠

ORDレコード
ord-21e95cc94a814d17b7dbafe96d3e9454
出典データセット
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08916601B2

反応ノート

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