Preparation method of pirfenidone

The invention relates to the technical field of pirfenidone bulk drugs, and provides a pirfenidone preparation method, which comprises: S1, stirring and mixing 2-bromo (iodo)-5-methylpyridine, an organic solvent and an alkali solution, and heating to a temperature of 50-80 DEG C to carry out a react...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIU CUNLING, SU GUIYONG, WU SHUANGJUN, LIU YANFEI, DUAN YIJIE, LIU CHANGJIANG, MU ZIQI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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