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Acetic Acid → 3-{5-amino-4-[3-(4-methyl-piperazin-1-ylmethyl)-benzoyl]-pyrazol-1-yl}-N-cyclopropyl-4-methyl-benzamide

HRID 884774
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Reaktionsgleichung

Reaktionsgleichung von HRID 884774
[NH2:1][C:2]1[N:6]([C:7]2[CH:8]=[C:9]([CH:16]=[CH:17][C:18]=2[CH3:19])[C:10]([NH:12][CH:13]2[CH2:15][CH2:14]2)=[O:11])[N:5]=[CH:4][C:3]=1[C:20](=[O:29])[C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([CH:27]=O)[CH:22]=1.[CH3:30][N:31]1[CH2:36][CH2:35][NH:34][CH2:33][CH2:32]1.CC(O)=O.[OH-].[Na+]>ClCCl.ClCCCl>[NH2:1][C:2]1[N:6]([C:7]2[CH:8]=[C:9]([CH:16]=[CH:17][C:18]=2[CH3:19])[C:10]([NH:12][CH:13]2[CH2:14][CH2:15]2)=[O:11])[N:5]=[CH:4][C:3]=1[C:20](=[O:29])[C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([CH2:27][N:34]2[CH2:35][CH2:36][N:31]([CH3:30])[CH2:32][CH2:33]2)[CH:22]=1
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Komponenten

7

Edukt 4

HCID 176Acetic AcidHCID 14798Sodium HydroxideHCID 531671-MethylpiperazineHCID 112806793-[5-amino-4-(3-formylbenzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methylbenzamide

Produkt 1

HCID 117518073-{5-amino-4-[3-(4-methyl-piperazin-1-ylmethyl)-benzoyl]-pyrazol-1-yl}-N-cyclopropyl-4-methyl-benzamideAusbeute 67 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 111,2-DichloroethaneLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a mixture of 3-[5-amino-4-(3-formyl-benzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methyl-benzamide 6 (Example 9, 1.0 eq) and 1-methyl-piperazine (1.09 eq) in equal volume of 1,2-dichloroethane and dichloromethane was added AcOH (0.96 eq) Sodium triacetoxyborohydride (1.5 eq) was then added. The reaction mixture was stirred at room temperature for 2 h. Aqueous NaOH was added to quench the reaction and the mixture was extracted with ethyl acetate. The organic layer was separated and washed with water and saturated NaCl solution. The organic layer was then dried over Na2SO4, filtered and concentrated to give a residue that could be purified by silica gel chromatography (eluent: 9/1 CH2Cl2/methanol then 9/1/0.05 CH2Cl2/MeOH/NH3H2O). Yield 67%. MS m/z 473.3 [M+H]+; 1H NMR (300 MHz, CDCl3) 0.61 (m, 2H), 0.86 (m, 2H), 2.26 (s, 3H), 2.30 (s, 3H), 2.52 (brs, 8 H), 2.90 (m, 1H), 3.60 (s, 2H), 5.87 (brs, 1H), 6.30 (brs, 2H), 7.45 (m, 3H), 7.70 (m, 2H), 7.83 (m, 3H) ppm.

Aufarbeitung

  1. additionwas then added
  2. customto quench
  3. customthe reaction
  4. extractionthe mixture was extracted with ethyl acetate
  5. customThe organic layer was separated
  6. washwashed with water and saturated NaCl solution
  7. dry with materialThe organic layer was then dried over Na2SO4
  8. filtrationfiltered
  9. concentrationconcentrated
  10. customto give a residue that
  11. customcould be purified by silica gel chromatography (eluent

Quellen und Nachweise

ORD-Eintrag
ord-e913048bcfeb4a2facbd0795386ed53f
Quelldatensatz
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08242117B2

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