Chloroacetamide → 2-(4-[4-(1-benzofuran-5-yl)phenyl]-3-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)acetamide

HRID 525146

Reaktionsgleichung

Reaktionsgleichung von HRID 525146
[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3[CH:15]=[CH:14][C:13]([N:16]4[C:20]([CH2:21][C@@H:22]5[CH2:26][CH2:25][N:24]([C:27]([CH:29]6[CH2:31][CH2:30]6)=[O:28])[CH2:23]5)=[N:19][NH:18][C:17]4=[O:32])=[CH:12][CH:11]=3)=[CH:9][C:4]=2[CH:3]=[CH:2]1.C(=O)([O-])[O-].[K+].[K+].Cl[CH2:40][C:41]([NH2:43])=[O:42]>CN(C)C=O>[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]3[CH:11]=[CH:12][C:13]([N:16]4[C:17](=[O:32])[N:18]([CH2:40][C:41]([NH2:43])=[O:42])[N:19]=[C:20]4[CH2:21][C@@H:22]4[CH2:26][CH2:25][N:24]([C:27]([CH:29]5[CH2:30][CH2:31]5)=[O:28])[CH2:23]4)=[CH:14][CH:15]=3)=[CH:9][C:4]=2[CH:3]=[CH:2]1

Komponenten

5

Edukt 3

HCID 6580ChloroacetamideHCID 11430Potassium CarbonateHCID 67376285Gsk2194069

Produkt 1

HCID 682609402-(4-[4-(1-benzofuran-5-yl)phenyl]-3-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)acetamideAusbeute 44 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a solution of 4-[4-(1-benzofuran-5-yl)phenyl]-5-{[(3S)-1-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one (50 mg, 0.117 mmol) in N,N-dimethylformamide (1 mL) in a 5 mL microwaveable vial was added potassium carbonate (50 mg, 0.362 mmol, 3.1 eq) and 2-chloroacetamide (16 mg, 0.175 mmol, 1.5 eq). The vial was capped and purged with nitrogen gas, and the reaction mixture was stirred for 16 h at 80° C. Analysis by LC/MS displayed the reaction had gone to completion. The reaction mixture was cooled to room temperature and poured into a mixture of dichloromethane and water. The organic layer was separated. The aqueous layer was washed with dichloromethane. The organic extractions were combined and washed 3× with a dilute brine solution. The organic layer was separated, dried over sodium sulfate, filtered, and concentrated in vacuo. The crude product was purified by reverse phase HPLC (LUNA C-18: 30×50 mm column; 20-50% acetonitrile w/0.1% TFA/water w/0.1% TFA). The product fractions were neutralized with the addition of saturated aq sodium bicarbonate, combined, and extracted with dichloromethane. The organic layer was dried over sodium sulfate, filtered, and concentrated in vacuo to afford the title compound (25 mg, 44%). MS(ES)+ m/e 486.2 [M+H]+.

Aufarbeitung

  1. customThe vial was capped
  2. custompurged with nitrogen gas
  3. temperatureThe reaction mixture was cooled to room temperature
  4. additionpoured into a mixture of dichloromethane and water
  5. customThe organic layer was separated
  6. washThe aqueous layer was washed with dichloromethane
  7. extractionThe organic extractions
  8. washwashed 3× with a dilute brine solution
  9. customThe organic layer was separated
  10. dry with materialdried over sodium sulfate
  11. filtrationfiltered
  12. concentrationconcentrated in vacuo
  13. customThe crude product was purified by reverse phase HPLC (LUNA C-18: 30×50 mm column; 20-50% acetonitrile w/0.1% TFA/water w/0.1% TFA)
  14. additionThe product fractions were neutralized with the addition of saturated aq sodium bicarbonate
  15. extractionextracted with dichloromethane
  16. dry with materialThe organic layer was dried over sodium sulfate
  17. filtrationfiltered
  18. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-66208f536e0f45548d2dc908a351af41
Quelldatensatz
uspto-grants-2016_05
Patentnummer
US09340529B2

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