Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANGYO KAGAKU KENKYU KYOKAI
Original Assignee
SANGYO KAGAKU KENKYU KYOKAI
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Publication date
Application filed by SANGYO KAGAKU KENKYU KYOKAIfiledCriticalSANGYO KAGAKU KENKYU KYOKAI
Priority to JP6257276ApriorityCriticalpatent/JPS52148090A/en
Publication of JPS52148090ApublicationCriticalpatent/JPS52148090A/en
Publication of JPS6139953B2publicationCriticalpatent/JPS6139953B2/ja
PURPOSE: The cephem-carboxylic acid esters of formula [W is OH and/or (halo) phenyl; Qis protected amino or azide; R1 is alkyl or aryl; R2 is alkyl or alkoxy], e.g. 7-(D-α-formylamino-phnylacetamido)-desacetoxy cephalosporanic acid 1'-methoxy-carbonyl-2'-oxopropane-1'-yl-ester.