ALTERNATIVE PROCESS FOR THE PREPARATION OF 4-PHENYL-5-ALKOXYCARBONYL-2-THIAZOL-2-YL-1,4-DIHYDROPYRIMIDIN-6-YL]METHYL]-3-OXO-5,6,8,8A-TETRAHYDRO-1H-IMIDAZO[1,5-A]PYRAZIN-2-YL]-CARBOXYLIC ACID

ALTERNATIVE PROCESS FOR THE PREPARATION OF 4-PHENYL-5-ALKOXYCARBONYL-2-THIAZOL-2-YL-1,4-DIHYDROPYRIMIDIN-6-YL]METHYL]-3-OXO-5,6,8,8A-TETRAHYDRO-1H-IMIDAZO[1,5-A]PYRAZIN-2-YL]-CARBOXYLIC ACID

The present invention relates to an alternative process for synthesizing a compound of formula (I), R1 is phenyl, which is unsubstituted or substituted with one, two or three substituents independently selected from halogen and C1-6alkyl; R2 is C1-6alkyl; R3 is -CxH2-; x is 1, 2, 3, 4, 5, 6 or 7; or...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: XU, Zhixiang, FISHLOCK, Daniel Vincent, SPURR, Paul, WUITSCHIK, Georg, ZHANG, Fugui, LIU, Jianshu
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention relates to an alternative process for synthesizing a compound of formula (I), R1 is phenyl, which is unsubstituted or substituted with one, two or three substituents independently selected from halogen and C1-6alkyl; R2 is C1-6alkyl; R3 is -CxH2-; x is 1, 2, 3, 4, 5, 6 or 7; or pharmaceutically acceptable salt or diastereomer thereof, which is useful for prophylaxis and treatment of a viral disease in a patient relating to hepatitis B infection or a disease caused by hepatitis B infection.