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Pfizer Italia SRL
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Farmaceutici Italia SpA
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Publication of ES309868A1publicationCriticalpatent/ES309868A1/en
Preparation Of Compounds By Using Micro-Organisms
(AREA)
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
A process for preparing oxitotracicline, which is characterized by cultivating the new microorganism Streptomyces henetus n. sp. under aerobic conditions and in a nutrient medium containing a source of carbon, nitrogen and mineral salts, at a temperature of 24º to 37º C, for a period of 72 to 144 hours and at a pH of 6.1 to 8 and by separating from the fermentation broth the oxitotracicline thus formed and purified as such or transformed into its salts with mineral or organic acids, in a known manner. (Machine-translation by Google Translate, not legally binding)
ES0309868A1964-02-271965-02-26A procedure for preparing oxytetracicline. (Machine-translation by Google Translate, not legally binding)
ExpiredES309868A1
(en)