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Sodium Thiosulfate → 3-hydroxy-5-{[(1S)-1-(hydroxymethyl)propyl]oxy}-N-(1-methyl-1H-pyrazol-3-yl)benzamide

HRID 1175923
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HRID 1175923 반응식
[OH:1][C:2]1[CH:3]=[C:4]([CH:14]=[C:15]([O:17][C@H:18]([CH2:21][O:22]C)[CH2:19][CH3:20])[CH:16]=1)[C:5]([NH:7][C:8]1[CH:12]=[CH:11][N:10]([CH3:13])[N:9]=1)=[O:6].I[Si](C)(C)C.C(=O)([O-])O.[Na+].S([O-])([O-])(=O)=S.[Na+].[Na+]>C(#N)C>[OH:1][C:2]1[CH:3]=[C:4]([CH:14]=[C:15]([O:17][C@H:18]([CH2:21][OH:22])[CH2:19][CH3:20])[CH:16]=1)[C:5]([NH:7][C:8]1[CH:12]=[CH:11][N:10]([CH3:13])[N:9]=1)=[O:6]
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참가 물질

6

반응물 4

HCID 24477Sodium ThiosulfateHCID 85247Trimethylsilyl iodideHCID 516892Sodium BicarbonateHCID 591271273-hydroxy-5-{[(1S)-1-(methoxymethyl)propyl]oxy}-N-(1-methyl-1H-pyrazol-3-yl)benzamide

생성물 1

HCID 591271493-hydroxy-5-{[(1S)-1-(hydroxymethyl)propyl]oxy}-N-(1-methyl-1H-pyrazol-3-yl)benzamide수율 82.9%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

To a solution of 3-hydroxy-5-({(1S)-1-[(methyloxy)methyl]propyl}oxy)-N-(1-methyl-1H-pyrazol-3-yl)benzamide (500 mg, 1.6 mmol) in acetonitrile (25 mL), iodotrimethylsilane (1.11 mL, 7.8 mmol) was added and the resulting mixture stirred for 16 hours. Saturated sodium hydrogencarbonate solution (10 mL) was added, the solution stirred for 10 mins, saturated aqueous sodium thiosulfate (5 mL) was added then the acetonitrile was removed in vacuo. The residual aqueous layer was extracted with ethyl acetate (3×40 mL) and the organic layers combined, dried (MgSO4), filtered and evaporated and purified by column chromatography, eluting with 85% ethyl acetate in isohexane, to give the title compound as a colourless foam (405 mg). 1H NMR δ (d6-DMSO): 0.95 (t, 3H), 1.5-1.8 (m, 2H), 3.5 (m, 2H), 3.8 (s, 3H), 4.3 (m, 1H), 4.8 (t, 1H), 6.45 (s, 1H), 6.55 (s, 1H), 6.9 (s, 1H), 7.05 (s, 1H), 7.55 (s, 1H), 9.6 (s, 1H); m/z 306 (M+H)+

후처리

  1. stirringthe solution stirred for 10 mins
  2. customthe acetonitrile was removed in vacuo
  3. extractionThe residual aqueous layer was extracted with ethyl acetate (3×40 mL)
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. customevaporated
  7. custompurified by column chromatography
  8. washeluting with 85% ethyl acetate in isohexane

출처 및 근거

ORD 기록
ord-89d74c3cfdcd47429480a14a2f75c8f4
출처 데이터셋
uspto-grants-2010_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07842694B2

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