Methyl iodide → Methyl 3-methyl-7-(methyloxy)-6-(methylthio)-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylate

HRID 245171

Reaktionsgleichung

Reaktionsgleichung von HRID 245171
[H-].[Na+].F[C:4]1[CH:5]=[C:6]2[C:11](=[CH:12][C:13]=1[O:14][CH3:15])[N:10]=[C:9]([C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([C:22]([F:25])([F:24])[F:23])[CH:17]=1)[C:8]([CH3:26])=[C:7]2[C:27]([OH:29])=[O:28].[CH3:30][S-:31].[Na+].I[CH3:34]>CS(C)=O.CCOCC>[CH3:26][C:8]1[C:9]([C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([C:22]([F:23])([F:25])[F:24])[CH:17]=2)=[N:10][C:11]2[C:6]([C:7]=1[C:27]([O:29][CH3:34])=[O:28])=[CH:5][C:4]([S:31][CH3:30])=[C:13]([O:14][CH3:15])[CH:12]=2

Komponenten

7

Edukt 4

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 4378561Sodium methanethiolateHCID 673840026-Fluoro-3-methyl-7-(methyloxy)-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylic acid

Produkt 1

HCID 67383617Methyl 3-methyl-7-(methyloxy)-6-(methylthio)-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylateAusbeute 82,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 679Dimethyl SulfoxideLösungsmittelHCID 3283Diethyl EtherLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

Sodium hydride (0.949 g, 23.73 mmol) was added portionwise to a suspension of 6-fluoro-3-methyl-7-(methyloxy)-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylic acid (6.0 g, 15.82 mmol) in dimethyl sulfoxide (50 mL). After 20 min, sodium thiomethoxide (1.44 g, 17.40 mmol) was added. The reaction mixture was heated to 100° C. for 2 h. The mixture was cooled to room temperature, and iodomethane (4.95 mL, 79 mmol) was added. The reaction mixture was stirred for 2 h, diluted with ether, and extracted with methylene chloride (three times). The combined organic extracts were washed with brine (2 times), dried over Na2SO4, filtered, and concentrated. The residue was purified via column chromatography (ISCO, 330 g silica, 0-15% ethyl acetate/hexanes) to give methyl 3-methyl-7-(methyloxy)-6-(methylthio)-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylate (5.48 g, 82% yield). 1H NMR (400 MHz, DMSO-d6) δ 7.94-8.01 (m, 2H), 7.87 (d, J=7.28 Hz, 1H), 7.77 (d, J=7.53 Hz, 1H), 7.49 (s, 1H), 7.24 (s, 1H), 4.07 (s, 3H), 4.01 (s, 3H), 2.53 (s, 3H), 2.34 (s, 3H); MS (m/z) 422.1 (M+H+).

Aufarbeitung

  1. temperatureThe mixture was cooled to room temperature
  2. extractionextracted with methylene chloride (three times)
  3. washThe combined organic extracts were washed with brine (2 times)
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified via column chromatography (ISCO, 330 g silica, 0-15% ethyl acetate/hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-ba25ecaa11ac4e0d80b9231401bd3095
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08658636B2

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