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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Fujisawa Pharmaceutical Co Ltd
Original Assignee
Fujisawa Pharmaceutical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujisawa Pharmaceutical Co LtdfiledCriticalFujisawa Pharmaceutical Co Ltd
Priority to ES507974ApriorityCriticalpatent/ES507974A0/en
Publication of ES8207183A1publicationCriticalpatent/ES8207183A1/en
Publication of ES507974A0publicationCriticalpatent/ES507974A0/en
A PROCEDURE FOR PREPARING CEFEM COMPOUNDS. IT CONSISTS OF MAKING REACTION A COMPOUND OF GENERAL FORMULA (I), IN WHICH A IS LOWER ALCOHYLENE CONTAINING OXO, OR A SALT OF THE SAME WITH A COMPOUND OF FORMULA R4ONH2 OR A SALT OF THE SAME. THE COMPOUND OF THE GENERAL FORMULA (II) IS OBTAINED, IN WHICH VARIOUS TRANSFORMATIONS MAY BE AFFECTED. R'' IS A SUBSTITUTED AMINO-HETEROCICLICO GROUP, WHICH MAY CONTAIN HALOGEN OR A PROTECTED-HETEROCICLICO AMINO GROUP; R2 IS CARBOXI PROTECTED; A12 IS LOWER ALCOHYLENE CONTAINING A GROUP = NOR4. (Machine-translation by Google Translate, not legally binding)
ES507974A1981-12-151981-12-15
A PROCEDURE FOR PREPARING CEFEM COMPOUNDS.
GrantedES507974A0
(en)
Procedure for obtaining ammonium salts from substitute 1,1-dioxides of 3,4-dihydro-2H-1,2-benzotizazine. (Machine-translation by Google Translate, not legally binding)