FREMGANGSMÅDE TIL FREMSTILLING AF METHYL 4-[(4,5-DIHYDRO-3-METHOXY-4-METHYL-5-OXO-1H

FREMGANGSMÅDE TIL FREMSTILLING AF METHYL 4-[(4,5-DIHYDRO-3-METHOXY-4-METHYL-5-OXO-1H

The invention relates to a method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate from 4-methoxycarbonyl-2-methylthiophene-3-sulfonyl chloride in the presence of an imidazole base substituted in the 1-position or...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SCHIFFER, Klaus-Ulrich, PAZENOK, Sergii, FORD, Mark, James, NEEFF, Arnd, FUNKE, Christian, MÜHLTHAU, Friedrich, August
Format: Patent
Sprache:dan
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to a method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate from 4-methoxycarbonyl-2-methylthiophene-3-sulfonyl chloride in the presence of an imidazole base substituted in the 1-position or in the presence of a mixture of bases comprising an imidazole base substituted in the 1-position (N-alkylimidazole).