Ethyl Acetate → 1-Butoxypyrido[4,3-c]-1,6-naphthyridin-6-yl trifluoromethanesulfonate

HRID 2192970Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2192970
[CH2:1]([O:5][C:6]1[N:15]=[CH:14][CH:13]=[C:12]2[C:7]=1[C:8]1[CH:20]=[N:19][CH:18]=[CH:17][C:9]=1[C:10]([OH:16])=[N:11]2)[CH2:2][CH2:3][CH3:4].C(=O)([O-])[O-].[Cs+].[Cs+].C1(N[S:34]([C:37]([F:40])([F:39])[F:38])(=[O:36])=[O:35])C=CC=CC=1.C(OCC)(=O)C>CC(N(C)C)=O>[F:38][C:37]([F:40])([F:39])[S:34]([O:16][C:10]1[C:9]2[CH:17]=[CH:18][N:19]=[CH:20][C:8]=2[C:7]2[C:12](=[CH:13][CH:14]=[N:15][C:6]=2[O:5][CH2:1][CH2:2][CH2:3][CH3:4])[N:11]=1)(=[O:36])=[O:35]

Komponenten

6

Edukt 4

HCID 8857Ethyl AcetateHCID 10796Cesium carbonateHCID 680121,1,1-Trifluoro-N-phenylmethanesulfonamideHCID 178450362HCID 178450362, Verbindung

Produkt 1

HCID 593754901-Butoxypyrido[4,3-c]-1,6-naphthyridin-6-yl trifluoromethanesulfonate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 31374DimethylacetamideLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a mixture of 1-butoxypyrido[4,3-c]-1,6-naphthyridin-6-ol (2 g, 7.43 mmol) and cesium carbonate (4.84 g, 14.85 mmol) in DMA (75 ml), N-phenyltrifluoromethanesulfonamide (5.31 g, 14.85 mmol) was added. The reaction mixture was heated to 80° C. and stirred for 7 min. The reaction was then cooled to room temperature and added to ethyl acetate. The organic mixture was washed with aqueous sodium hydrogen carbonate (saturated), aqueous sodium carbonate (saturated), and brine. The organic extracts were combined, dried over sodium sulfate, and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel, eluting with ethyl acetate/hexanes, to afford 1-butoxypyrido[4,3-c]-1,6-naphthyridin-6-yl trifluoromethanesulfonate as a yellow solid. 1H NMR (500 MHz, C2D6SO) δ 10.68 (s, 1H), 9.08 (d, 1H), 8.52 (d, 1H), 8.14 (d, 1H), 7.62 (d, 1H), 4.70 (t, 2H), 1.96 (m, 2H), 1.57 (m, 2H), 1.00 (t, 3H). LRMS (APCI) calc'd for (C16H15F3N3O4S) [M+H]+, 402.1; found 402.0.

Aufarbeitung

  1. additionwas added
  2. temperatureThe reaction was then cooled to room temperature
  3. washThe organic mixture was washed with aqueous sodium hydrogen carbonate (saturated), aqueous sodium carbonate (saturated), and brine
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by column chromatography on silica gel
  7. washeluting with ethyl acetate/hexanes

Quellen und Nachweise

ORD-Eintrag
ord-3d38906b3d654ce0b0404a14505580b1
Quelldatensatz
uspto-grants-2012_12
Patentnummer
US08329722B2

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