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Sodium borohydride → 1-[5-(2,6-dimethyl-phenyl)-1-(6-isopropoxy-pyridazin-3-yl)-1H-pyrrolo[2,3-c]pyridin-3-yl]-2-ethyl-butan-1-ol

HRID 472049
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 472049
[CH3:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([CH3:8])[C:3]=1[C:9]1[CH:10]=[C:11]2[C:17]([C:18](=[O:24])[CH:19]([CH2:22][CH3:23])[CH2:20][CH3:21])=[CH:16][N:15]([C:25]3[N:26]=[N:27][C:28]([O:31][CH:32]([CH3:34])[CH3:33])=[CH:29][CH:30]=3)[C:12]2=[CH:13][N:14]=1.[BH4-].[Na+]>C(O)C.O>[CH3:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([CH3:8])[C:3]=1[C:9]1[CH:10]=[C:11]2[C:17]([CH:18]([OH:24])[CH:19]([CH2:20][CH3:21])[CH2:22][CH3:23])=[CH:16][N:15]([C:25]3[N:26]=[N:27][C:28]([O:31][CH:32]([CH3:34])[CH3:33])=[CH:29][CH:30]=3)[C:12]2=[CH:13][N:14]=1
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Komponenten

4

Edukt 2

HCID 4311764Sodium borohydrideHCID 671526521-[5-(2,6-dimethyl-phenyl)-1-(6-isopropoxy-pyridazin-3-yl)-1H-pyrrolo[2,3-c]pyridin-3-yl]-2-ethyl-butan-1-one

Produkt 1

HCID 582699361-[5-(2,6-dimethyl-phenyl)-1-(6-isopropoxy-pyridazin-3-yl)-1H-pyrrolo[2,3-c]pyridin-3-yl]-2-ethyl-butan-1-ol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 19096565Water ethanolLösungsmittel

Versuchsvorschrift

To a solution of 1-[5-(2,6-dimethyl-phenyl)-1-(6-isopropoxy-pyridazin-3-yl)-1H-pyrrolo[2,3-c]pyridin-3-yl]-2-ethyl-butan-1-one (70 mg, 0.15 mmol) in a (4:1) EtOH—H2O mixture (5 mL) cooled to −30° C., NaBH4 (50 mg, 1.3 mmol) is added, and the mixture is allowed to gradually warm up to room temperature at which the stirring is continued for 2 h. The mixture is concentrated tinder reduced pressure. The residue is diluted with a saturated aqueous solution of Rochelle's salt (10 mL), and the product is extracted with DCM. The combined organic solutions are washed with brine, dried (Na2SO4) and concentrated under reduced pressure. Chromatography of the residue on silica gel (hexane-EtOAc, 1:1) gives 1-[5-(2,6-dimethyl-phenyl)-1-(6-isopropoxy-pyridazin-3-yl)-1H-pyrrolo[2,3-c]pyridin-3-yl]-2-ethyl-butan-1-ol as colorless oil. 1H NMR (CDCl3) 9.52 (s, 1H), 7.83 (s, 1H), 7.71 (s, 1H), 7.69 (s, 1H), 7.59 (s, 1H), 7.22-7.10 (m, 3H), 5.62 (m, 1H), 5.21 (m, 1H), 2.08 (s, 6H), 1.47 (d, J=7 Hz, 6H), 1.08 (s, 9H); LCMS m/z 459.14 (2.48 min).

Aufarbeitung

  1. concentrationThe mixture is concentrated tinder reduced pressure
  2. additionThe residue is diluted with a saturated aqueous solution of Rochelle's salt (10 mL)
  3. extractionthe product is extracted with DCM
  4. washThe combined organic solutions are washed with brine
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-fbda02826f2a48048bf5d9de5ff7bfb2
Quelldatensatz
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08633193B2

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