ES365106A3 - A procedure for obtaining a quaternary ammonium complex of an antibiotic type of tetracycline. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for obtaining a quaternary ammonium complex of an antibiotic type of tetracycline. (Machine-translation by Google Translate, not legally binding)
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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Pfizer Inc
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Pfizer Inc
Charles Pfizer and Co Inc
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Application filed by Pfizer Inc, Charles Pfizer and Co IncfiledCriticalPfizer Inc
Priority to ES365106ApriorityCriticalpatent/ES365106A3/en
Publication of ES365106A3publicationCriticalpatent/ES365106A3/en
A process for obtaining a quaternary ammonium complex of an antibiotic of the tetracycline type, by reaction of the antibiotic and a quaternary ammonium salt having at least one alkyl group of: about 8 to about 18 atoms; carbon, in an aqueous medium at a ph of about 6.5 to 10; characterized in that it comprises adding to the medium about 0.1 mole to about 0.75 mole of the quaternary ammonium salt per mole of the antibiotic of the tetracycline type, and maintaining the temperature of the medium between about 40 and 75º c. (Machine-translation by Google Translate, not legally binding)
ES365106A1969-03-221969-03-22A procedure for obtaining a quaternary ammonium complex of an antibiotic type of tetracycline. (Machine-translation by Google Translate, not legally binding)
ExpiredES365106A3
(en)
A procedure for obtaining a quaternary ammonium complex of an antibiotic type of tetracycline. (Machine-translation by Google Translate, not legally binding)
A procedure for obtaining a quaternary ammonium complex of an antibiotic type of tetracycline. (Machine-translation by Google Translate, not legally binding)
A procedure for obtaining a quaternary ammonium complex of an antibiotic type of tetracycline. (Machine-translation by Google Translate, not legally binding)
A procedure for obtaining a quaternary ammonium complex of an antibiotic type of tetracycline. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of N- (2-amino-3,5-dibromobenciliden) -trans-4-amino-ciclohexanol. (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture of insºpid salts of N- (5-nitrofurfuriliden) -1-aminohidantoin (Machine-translation by Google Translate, not legally binding)