Dimethyl Sulfoxide → 4-[1-(4-hydroxyphenyl)piperidin-4-yl]-6-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one

HRID 520158Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 520158
[Cl-].O[NH3+:3].[C:4](=[O:7])([O-])[OH:5].[Na+].CS(C)=O.[OH:13][C:14]1[CH:19]=[CH:18][C:17]([N:20]2[CH2:25][CH2:24][CH:23]([N:26]3[C:31](=[O:32])[C:30]([CH2:33][C:34]4[CH:39]=[CH:38][C:37]([C:40]5[C:41]([C:46]#[N:47])=[CH:42][CH:43]=[CH:44][CH:45]=5)=[CH:36][CH:35]=4)=[C:29]([CH2:48][CH2:49][CH3:50])[N:28]4[N:51]=[CH:52][N:53]=[C:27]34)[CH2:22][CH2:21]2)=[CH:16][CH:15]=1>C(OCC)(=O)C>[OH:13][C:14]1[CH:15]=[CH:16][C:17]([N:20]2[CH2:21][CH2:22][CH:23]([N:26]3[C:31](=[O:32])[C:30]([CH2:33][C:34]4[CH:39]=[CH:38][C:37]([C:40]5[CH:45]=[CH:44][CH:43]=[CH:42][C:41]=5[C:46]5[NH:3][C:4](=[O:7])[O:5][N:47]=5)=[CH:36][CH:35]=4)=[C:29]([CH2:48][CH2:49][CH3:50])[N:28]4[N:51]=[CH:52][N:53]=[C:27]34)[CH2:24][CH2:25]2)=[CH:18][CH:19]=1

Komponenten

6

Edukt 4

HCID 679Dimethyl SulfoxideHCID 21645Hydroxylamine HClHCID 516892Sodium BicarbonateHCID 670084854'-({4-[1-(4-Hydroxyphenyl)piperidin-4-yl]-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile

Produkt 1

HCID 1360638524-[1-(4-hydroxyphenyl)piperidin-4-yl]-6-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-oneAusbeute 36,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

A mixture of hydroxylammonium chloride (344 mg), sodium hydrogen carbonate (554 mg) and dimethyl sulfoxide (3 mL) was stirred at 60° C. for 30 min, 4′-({4-[1-(4-hydroxyphenyl)piperidin-4-yl]-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile (180 mg) was added, and the mixture was stirred at 90° C. for 16 hr. The reaction mixture was diluted with ethyl acetate, washed with water and then with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was dissolved in tetrahydrofuran (3 mL). N,N′-Carbonyldiimidazole (65 mg) and then 1,8-diazabicyclo[5.4.0]undec-7-ene (61 mg) were added, and the mixture was stirred at room temperature for 2 hr. The reaction mixture was diluted with ethyl acetate, washed with saturated aqueous potassium hydrogensulfate solution and then with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=70/30→45/55 (volume ratio)] and crystallized from a mixture of ethyl acetate and diisopropyl ether to give the title compound as colorless crystals (72 mg, 36%).

Aufarbeitung

  1. stirringthe mixture was stirred at 90° C. for 16 hr
  2. washwashed with water
  3. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. dissolutionthe residue was dissolved in tetrahydrofuran (3 mL)
  6. additionN,N′-Carbonyldiimidazole (65 mg) and then 1,8-diazabicyclo[5.4.0]undec-7-ene (61 mg) were added
  7. stirringthe mixture was stirred at room temperature for 2 hr
  8. additionThe reaction mixture was diluted with ethyl acetate
  9. washwashed with saturated aqueous potassium hydrogensulfate solution
  10. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  11. customThe solvent was evaporated under reduced pressure
  12. customthe residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=70/30→45/55 (volume ratio)]
  13. customcrystallized from a mixture of ethyl acetate and diisopropyl ether

Quellen und Nachweise

ORD-Eintrag
ord-e6789069842444418013cc98821bf30f
Quelldatensatz
uspto-grants-2015_08
Patentnummer
US09115136B2

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