Potassium Carbonate → Methyl 2-[4-[1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl]phenoxy]acetate

HRID 1675155Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1675155
Br[CH2:2][C:3]([O:5][CH3:6])=[O:4].[F:7][C:8]([F:32])([F:31])[C:9]1[N:13]2[N:14]=[C:15]([N:18]3[CH2:23][CH2:22][CH:21]([C:24]4[CH:29]=[CH:28][C:27]([OH:30])=[CH:26][CH:25]=4)[CH2:20][CH2:19]3)[CH:16]=[CH:17][C:12]2=[N:11][N:10]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[F:32][C:8]([F:7])([F:31])[C:9]1[N:13]2[N:14]=[C:15]([N:18]3[CH2:23][CH2:22][CH:21]([C:24]4[CH:29]=[CH:28][C:27]([O:30][CH2:2][C:3]([O:5][CH3:6])=[O:4])=[CH:26][CH:25]=4)[CH2:20][CH2:19]3)[CH:16]=[CH:17][C:12]2=[N:11][N:10]=1

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 60984Methyl bromoacetateHCID 367300784-(1-(3-(Trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperidin-4-yl)phenol

Produkt 1

HCID 67342348Methyl 2-[4-[1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl]phenoxy]acetateAusbeute 100,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

Methyl 2-bromoacetate (0.418 mL, 4.42 mmol) was added to 4-[1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl]phenol (obtained as described in Example 513, preparation of starting materials) (1.07 g, 2.94 mmol) and potassium carbonate (0.814 g, 5.89 mmol) in DMF (20 mL). The resulting suspension was stirred at ambient temperature for 16 hours. The reaction mixture was evaporated to dryness then water (50 mL) added and stirring continued for 20 minutes. The resulting precipitate was collected by filtration, washed with water then ether and dried to afford methyl 2-[4-[1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl]phenoxy]acetate (1.290 g, 100%).

Aufarbeitung

  1. customThe reaction mixture was evaporated to dryness
  2. additionwater (50 mL) added
  3. stirringstirring
  4. waitcontinued for 20 minutes
  5. filtrationThe resulting precipitate was collected by filtration
  6. washwashed with water
  7. dry with materialether and dried

Quellen und Nachweise

ORD-Eintrag
ord-9a2d940a6def4a3fa2f1fc3bace83e66
Quelldatensatz
uspto-grants-2011_08
Patentnummer
US08003649B2

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