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

HRID 1406553
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HRID 1406553 반응식
[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]
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6

반응물 3

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

생성물 1

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

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine
촉매
HCID 1049Pyridine용매

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온도
80 °C

실험 절차

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.

후처리

  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)

출처 및 근거

ORD 기록
ord-21e95cc94a814d17b7dbafe96d3e9454
출처 데이터셋
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08916601B2

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