Preparation method of two high-purity clevidipine butyrate impurities

The invention relates to a preparation method of two clevidipine butyrate impurities of 4-(2, 4-dichlorophenyl)-1, 4-dihydro-2, 6-dimethyl-3, 5-pyridine dicarboxylic acid methyl ester butyryloxy methyl ester (I) and 4-(3, 4-dichlorophenyl)-1, 4-dihydro-2, 6-dimethyl-3, 5-pyridine dicarboxylic acid m...

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Bibliographische Detailangaben

Hauptverfasser:	FAN ZHIPING, DUAN CHONGGANG, ZHAO SITAI, REN YEMING, XIAN JING, GONG YANYAN, SUN QIAN, LIU YIHUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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