Reaktionsgleichung
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH3:10])[CH:6]=[CH:5][C:4]=1[C:11]1[N:16]([CH2:17][C:18]([O:20]CC)=[O:19])[C:15](=[S:23])[NH:14][C:13](=[O:24])[CH:12]=1.[OH-].[Na+]>CO>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH3:10])[CH:6]=[CH:5][C:4]=1[C:11]1[N:16]([CH2:17][C:18]([OH:20])=[O:19])[C:15](=[S:23])[NH:14][C:13](=[O:24])[CH:12]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 35 °C
Versuchsvorschrift
To a solution of ethyl 2-(6-(2,4-dimethoxyphenyl)-4-oxo-2-thioxo-3,4-dihydropyrimidin-1(2H)-yl)acetate (6.8 g, 20.3 mmol) in methanol (34 mL) was added 6N aqueous NaOH (16.9 mL), and the solution was stirred at 35° C. for 3 hours. The mixture was concentrated under reduced pressure, and water (100 mL) was added. The aqueous layer was washed with ethyl acetate (2×200 mL), and acidified with concentrated HCl to pH ˜2. The resultant acidic aqueous solution was extracted with EtOAc (3×200 mL), and the combined organic layers were dried with sodium sulfate, and concentrated under reduced pressure to give the title compound 6.53 g (99%) as a white solid.
Aufarbeitung
- concentrationThe mixture was concentrated under reduced pressure, and water (100 mL)
- additionwas added
- washThe aqueous layer was washed with ethyl acetate (2×200 mL)
- extractionThe resultant acidic aqueous solution was extracted with EtOAc (3×200 mL)
- dry with materialthe combined organic layers were dried with sodium sulfate
- concentrationconcentrated under reduced pressure
Quellen und Nachweise
- ORD-Eintrag
- ord-75324629775a4a0b80819c7c5832b9be
- Quelldatensatz
- uspto-grants-2014_09
- Patentnummer
- US08835449B2
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