Hydroxyamine hydrochloride → 1-(4-(2-(5-Amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl)ethanone oxime

HRID 340377

Reaktionsgleichung

Reaktionsgleichung von HRID 340377
[NH2:1][C:2]1[C:11]2[N:10]=[CH:9][C:8]([CH2:12][CH2:13][C:14]3[CH:19]=[CH:18][C:17]([C:20](=O)[CH3:21])=[CH:16][CH:15]=3)=[CH:7][C:6]=2[C:5]2[CH:23]=[CH:24][C:25]([CH3:27])=[CH:26][C:4]=2[N:3]=1.Cl.[NH2:29][OH:30]>CC(O)=O.C(O)C.C(OCC)(=O)C.O>[NH2:1][C:2]1[C:11]2[N:10]=[CH:9][C:8]([CH2:12][CH2:13][C:14]3[CH:19]=[CH:18][C:17]([C:20](=[N:29][OH:30])[CH3:21])=[CH:16][CH:15]=3)=[CH:7][C:6]=2[C:5]2[CH:23]=[CH:24][C:25]([CH3:27])=[CH:26][C:4]=2[N:3]=1

Komponenten

7

Edukt 2

HCID 443297Hydroxyamine hydrochlorideHCID 582136151-(4-(2-(5-Amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl)ethanone

Produkt 1

HCID 767047491-(4-(2-(5-Amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl)ethanone oxime

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 176Acetic AcidKatalysatorHCID 702EthanolLösungsmittelHCID 962WaterLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A solution of 1-(4-(2-(5-amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl)ethanone (from Example 171) (1 eq), hydroxylamine hydrochloride (2 eq) and 1 drop of HOAc, dissolved in absolute ethanol (0.028M) was stirred at room temperature for 1.5 hours. The mixture was diluted with ethyl acetate and water. The two phases were separated, and the aqueous layer was extracted twice with ethyl acetate. The combined organic layers were washed with brine, dried over anhydrous MgSO4, and concentrated en vacuo . The crude material was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 10-80% ethyl acetate in hexane to give 1-(4-(2-(5-amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl)ethanone oxime as a white solid. 1H NMR (Methanol-d4): δ 8.56 (s, 1H), 8.52 (s, 1H), 8.12 (d, 1H), 7.45 (d, 2H), 7.31 (s, 1H), 7.12 (m, 3H), 4.51 (s, OH), 3.15 (t, 2H), 3.01 (t, 2H), 2.39 (s, 3H), 2.09 (s, 3H). LRMS [M+H]=371.2

Aufarbeitung

  1. customThe two phases were separated
  2. extractionthe aqueous layer was extracted twice with ethyl acetate
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over anhydrous MgSO4
  5. concentrationconcentrated en vacuo
  6. customThe crude material was purified by flash chromatography on a COMBIFLASH® system (ISCO)

Quellen und Nachweise

ORD-Eintrag
ord-4a9b429bb1c742f995851884730dfc8b
Quelldatensatz
uspto-grants-2014_11
Patentnummer
US08895577B2

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