Acetyl chloride → 6-(1-Acetylpiperidin-4-yloxy)-4-(3-chloro-2-fluoroanilino)-7-methoxyquinazoline

HRID 1948903Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1948903
[C:1](Cl)(=[O:3])[CH3:2].Cl.Cl.[NH:7]1[CH2:12][CH2:11][CH:10]([O:13][C:14]2[CH:15]=[C:16]3[C:21](=[CH:22][C:23]=2[O:24][CH3:25])[N:20]=[CH:19][N:18]=[C:17]3[NH:26][C:27]2[CH:32]=[CH:31][CH:30]=[C:29]([Cl:33])[C:28]=2[F:34])[CH2:9][CH2:8]1.C(N(C(C)C)CC)(C)C>C(Cl)Cl>[C:1]([N:7]1[CH2:12][CH2:11][CH:10]([O:13][C:14]2[CH:15]=[C:16]3[C:21](=[CH:22][C:23]=2[O:24][CH3:25])[N:20]=[CH:19][N:18]=[C:17]3[NH:26][C:27]2[CH:32]=[CH:31][CH:30]=[C:29]([Cl:33])[C:28]=2[F:34])[CH2:9][CH2:8]1)(=[O:3])[CH3:2]

Komponenten

5

Edukt 3

HCID 6367Acetyl chlorideHCID 81531DiisopropylethylamineHCID 574768654-(3-Chloro-2-fluoroanilino)-7-methoxy-6-(piperidin-4-yloxy)quinazoline dihydrochloride

Produkt 1

HCID 104336176-(1-Acetylpiperidin-4-yloxy)-4-(3-chloro-2-fluoroanilino)-7-methoxyquinazolineAusbeute 70 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

Acetyl chloride (179 mg) was added to a solution of 6-(piperidin-4-yloxy)-4-(3-chloro-2-fluoroanilino)-7-methoxyquinazoline dihydrochloride (1 g) and diisopropylethylamine (735 mg) in methylene chloride that was cooled at 0° C. and the mixture was stirred for 2 hours and allowed to warm to room temperature. The reaction mixture was adsorbed onto silica and the residue was purified by column chromatography eluting with increasingly polar mixtures of methylene chloride/methanol (100/0 to 90/10). The fractions containing the desired product were combined and evaporated under vacuum to give the title product as a colourless foam (0.655 g); 1H NMR Spectrum: (DMSO d6) 1.54-1.78 (m, 2H), 1.91-2.10 (m, 5H), 3.29-3.41 (m, 2H), 3.66-3.76 (m, 1H), 3.78-3.88 (m, 1H), 3.93 (s, 3H), 4.74 (m, 1H), 7.20 (s, 1H), 7.27 (t, 1H), 7.44-7.55 (m, 2H), 7.87 (s, 1H), 836 (s, 1H), 9.54 (s, 1H); Mass Spectrum: (M+H)+ 445.

Aufarbeitung

  1. temperatureto warm to room temperature
  2. customthe residue was purified by column chromatography
  3. washeluting
  4. temperaturewith increasingly polar mixtures of methylene chloride/methanol (100/0 to 90/10)
  5. additionThe fractions containing the desired product
  6. customevaporated under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-2ba77dee77024d6b8924cbe612b38089
Quelldatensatz
uspto-grants-2013_03
Patentnummer
US08399667B2

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