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.)
Instituto de Farmacologia Espanola SL Fundacion Marques de Urquijo
Original Assignee
Instituto de Farmacologia Espanola SL Fundacion Marques de Urquijo
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Filing date
Publication date
Application filed by Instituto de Farmacologia Espanola SL Fundacion Marques de UrquijofiledCriticalInstituto de Farmacologia Espanola SL Fundacion Marques de Urquijo
Priority to ES364069ApriorityCriticalpatent/ES364069A1/en
Publication of ES364069A1publicationCriticalpatent/ES364069A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Method for obtaining tetracycline salts, characterized in that anhydrous tetracycline base is dissolved in a suitable solvent, which may be a low molecular weight aliphatic acetone, such as, for example, acetone, butanone or methyl isobutyl acetone in the presence of glycolic guaiacol acid, stirring the mixture and heating it, if necessary, until a total solution is obtained which is filtered and added to a precipitating agent such as, for example, petroleum ether, used with a boiling point between 40-702 or 50-702 and in a volume between 2.4 and 2.7 times higher than that of the acetone used. (Machine-translation by Google Translate, not legally binding)
ES364069A1969-02-251969-02-25Procedure for obtaining tetracycline salts. (Machine-translation by Google Translate, not legally binding)
ExpiredES364069A1
(en)
Procedure for the preparation of new acids 4- (4-bifenilil) - 4 - hydroxibutirics, its esteres or lactonas. (Machine-translation by Google Translate, not legally binding)