ES399880A1 - Procedure for preparation of acid esters dl-7-amino deacetoxicefalosporanico. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for preparation of acid esters dl-7-amino deacetoxicefalosporanico. (Machine-translation by Google Translate, not legally binding)
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.)
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Sanofi Aventis France
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Roussel Uclaf SA
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Priority claimed from FR7105556Aexternal-prioritypatent/FR2125196B1/fr
Application filed by Roussel Uclaf SAfiledCriticalRoussel Uclaf SA
Publication of ES399880A1publicationCriticalpatent/ES399880A1/en
Procedure for the preparation of esters of DL-7-amino deacetoxycephalosporanic acid of general formula A: **(See formula)** which is presented in the form of a mixture of the cis and trans isomers or in the form of one of these, in which R1 represents a linear or branched alcoholic radical, optionally substituted by one or more chlorine atoms comprising from 1 to 6 atoms carbon, or an aralkoxy radical containing from 7 to 15 carbon atoms, characterized in that it is treated with an acidic agent, under mild conditions, a DL-7-tritylaminodeacetoxycephalosporenic acid ester of general formula I: **(See formula)** in the form of a mixture of the two cis and trans isomers or in the form of one of these. (Machine-translation by Google Translate, not legally binding)
ES399880A1971-02-181972-02-17Procedure for preparation of acid esters dl-7-amino deacetoxicefalosporanico. (Machine-translation by Google Translate, not legally binding)
ExpiredES399880A1
(en)
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