Sodium Hydroxide → 3-[5-amino-4-(3-hydroxymethyl-benzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methyl-benzamide

HRID 251337Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 251337
[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:28])[CH:22]=1.[BH4-].[Na+].[OH-].[Na+]>CO>[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]([CH2:27][OH:28])[CH:22]=1

Komponenten

5

Edukt 3

HCID 14798Sodium HydroxideHCID 4311764Sodium borohydrideHCID 112806793-[5-amino-4-(3-formylbenzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methylbenzamide

Produkt 1

HCID 114066393-[5-amino-4-(3-hydroxymethyl-benzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methyl-benzamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

To a mixture of 3-[5-amino-4-(3-formyl-benzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methyl-benzamide 6 (38 mg, 0.098 mmol) in methanol (3 mL) was added NaBH4 (11 mg, 0.29 mmol). The reaction mixture was stirred at room temperature for 1 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 was then dried over Na2SO4, filtered and concentrated to give a residue that could be purified by silica gel chromatography (eluent: 1/4 hexanes/EtOAc). The desired 3-[5-amino-4-(3-hydroxymethyl-benzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methyl-benzamide 7 was obtained as a white solid (22 mg, 58%). MS m/z 391.2 [M+H]+; 1H NMR (300 MHz, CDCl3) δ0.56 (m, 2H), 0.82 (m, 2H), 2.22 (s, 3H), 2.82 (m, 1H), 4.75 (s, 2H), 5.91 (brs, 2H), 6.75 (brs, 1H), 7.49 (m, 3H), 7.76 (m, 4H), 7.99 (s, 1H) ppm.

Aufarbeitung

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

Quellen und Nachweise

ORD-Eintrag
ord-81b8cd4190ea4e1a875475bff69e1a1e
Quelldatensatz
uspto-grants-2011_01
Patentnummer
US07863314B2

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