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Fujisawa Pharmaceutical Co Ltd
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Fujisawa Pharmaceutical Co Ltd
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Publication of ES507973A0publicationCriticalpatent/ES507973A0/en
Publication of ES8300113A1publicationCriticalpatent/ES8300113A1/en
A procedure for preparing compounds of cefem. Is to make reaction a composite formula general (I) with formoaldehido. A composite of general formula (II) is obtained that optionally can be subject to different transformations. R1 is a substituted amino-heterociclic group that may contain halogen, a protected-heterociclic amino group substituted. R1 is carboxi or a protected carboxi group; a lower alcoholene that may contain a selected substitute of the groups constituted by amino, an amino-protected group, hidroxi, oxo and the group = n or elevated 4. * formula *. (Machine-translation by Google Translate, not legally binding)
ES507973A1980-02-081981-12-15A PROCEDURE FOR PREPARING CEFEM COMPOUNDS. (Machine-translation by Google Translate, not legally binding)
ExpiredES8300113A1
(en)
A procedure for preparing the isomero without the compounds of 3-cefem-4-carboxylic acid replaced in positions 3 and 7. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of an intermediate compound in the synthesis of 9 alpha-halogen-16 beta-methyl-prednisolone. (Machine-translation by Google Translate, not legally binding)
(Arylmethyl)aryl-amino-cyclohexanols, -cyclohexanes, -cyclohexenes and intermediates thereof, a process for preparing the same and their use as medicaments.