6-APA (6-amino-penicillanic acid) and preparation method thereof

6-APA (6-amino-penicillanic acid) and preparation method thereof

The invention provides a preparation method of 6-APA (6-amino-penicillanic acid). 6-APA is prepared from a potassium carbonate reversed-extraction liquid of benzylpenicillin potassium directly, a molecular formula of 6-APA is C8H12N2O3S, and the molecular weight is 216.26. With the adoption of the p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YAN LIBEI, YAN LIBING, YANG SHENGJIN, ZHANG MINGHE
Format: Patent
Sprache:chi ; eng
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
HETEROCYCLIC COMPOUNDS
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:The invention provides a preparation method of 6-APA (6-amino-penicillanic acid). 6-APA is prepared from a potassium carbonate reversed-extraction liquid of benzylpenicillin potassium directly, a molecular formula of 6-APA is C8H12N2O3S, and the molecular weight is 216.26. With the adoption of the process, a crystallization step can be omitted, and crystallization yield loss is avoided; extracting and washing processes of a penicillin solvent are optimized in a technical process; with the adoption of the advanced preparation process, the preparation method is higher in yield and lower in cost. 种6-氨基青霉烷酸（6-APA）的制备方法，直接采用青霉素钾的碳酸钾反萃取液制取。所述6-APA的分子式为C8H12N2O3S，分子量为216.26。采用此种工艺可以省去结晶步骤，避免结晶收率损失。本发明的工艺过程中，对青霉素溶媒萃取、水洗工艺进行了优化。本发明采用了先进制备工艺，有较高收率和较低成本。