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Individual
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Individual
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Priority to JP17910187ApriorityCriticalpatent/JPS6422881A/en
Publication of JPS6422881ApublicationCriticalpatent/JPS6422881A/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
PURPOSE:To industrially and advantageously obtain the titled compound useful as an antibacterial agent, by cyclizing a specific compound in the presence of a base. CONSTITUTION:D-(-)-alpha-[beta-(N-p-Methoxybenzyloxyoxalyl-N-ethylamin oethylurei do]benzylpenicillin expressed by formula I is cyclized in the presence of a face (example; sodium hydride) to afford D-(-)-alpha-(4-ethyl-2,3- dioxopiperazinocarbonylamino)benzylpenicillin expressed by formula II.
JP17910187A1987-07-201987-07-20Production of novel penicillin compound
PendingJPS6422881A
(en)