ES404197A1 - A procedure for the production of a compound derived from 2-cefema or 3-cefema. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the production of a compound derived from 2-cefema or 3-cefema. (Machine-translation by Google Translate, not legally binding)
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Fujisawa Pharmaceutical Co Ltd
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Fujisawa Pharmaceutical Co Ltd
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Publication of ES404197A1publicationCriticalpatent/ES404197A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
A process for the production of a compound derived from 2-cepheme or from 3-cepheme of formula: **(See formula)** where R1 represents a substituted or unsubstituted amino radical, the dotted lines indicate the alternative bond structure to give the 3-cepheme or 2-cepheme isomers and R4 represents hydrogen or a radical selected from the group consisting of carboxy, protected carboxy, ester, acid amide, anhydride, acid halide, oxides and carboxy salt, the procedure of which is to react with a hydrohalic acid acceptor reagent a halogenated derivative of cepheme of the formula: **(See formula)** a halogenated derivative of cepheme of the formula: **(See formula)** where X represents a halogen atom, R3 represents a radical selected from the group consisting of carboxy, protected carboxy, ester, acid amide, anhydride, acid halide, azide and carboxy salt and R1 is the one defined above, or mixtures of the themselves. (Machine-translation by Google Translate, not legally binding)
ES404197A1971-08-181972-06-23A procedure for the production of a compound derived from 2-cefema or 3-cefema. (Machine-translation by Google Translate, not legally binding)
ExpiredES404197A1
(en)
A procedure for the preparation of piperidilidenic derivatives of xystene, tioxytein and dibenzozepine. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of acid2,3-alquilen (lower) penam-3-carboxylic. (Machine-translation by Google Translate, not legally binding)