ES240203A1 - A method of preparing compounds of the tetracyclyline series (Machine-translation by Google Translate, not legally binding)
- Google Patents
A method of preparing compounds of the tetracyclyline series (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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Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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Publication date
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Priority to ES0240203ApriorityCriticalpatent/ES240203A1/en
Publication of ES240203A1publicationCriticalpatent/ES240203A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Abstract
A method of preparing 6-demethyl-6-deoxytetracycline with the formula ** (See formula) ** or the 4th epimer of said 6-demethyl-6-deoxytetracycline, characterized by catalytically reducing a 6-demethyltetracycline having the formula: ** (See formula) ** wherein Z is hydrogen, chlorine or bromine, or the 4 th epimer of said demethyl tetracycline, in a solution in solvent in the presence of a substance that is capable of forming a chelate ring with a peridioxygenated hydronaphthalene. (Machine-translation by Google Translate, not legally binding)
ES0240203A1958-02-181958-02-18A method of preparing compounds of the tetracyclyline series (Machine-translation by Google Translate, not legally binding)
ExpiredES240203A1
(en)
A procedure for the preparation of new dyes appropriate for the dyeing of polyester materials (Machine-translation by Google Translate, not legally binding)