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Sandoz AG
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Sandoz AG
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Application filed by Sandoz AGfiledCriticalSandoz AG
Publication of ES244521A2publicationCriticalpatent/ES244521A2/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Hydrogenated Pyridines
(AREA)
Abstract
Improvements in the process for obtaining new hydrazine derivatives object of the main patent of the general formula i ** characterized in that 1-methyl-piperidyl-4-hydrazine of the formula ii ** (see formula) ** is reacted with the acetone ω-( 1-methyl-piperidyl-4) - ω '- isopropylidene-hydrazine obtained is acylated by treatment with carbonic acid chlorides of the general formula iii ** (see formula) * * where r1 has the above-stated meaning and the ω-( 1-methyl-piperidyl-4) - ω - acylated isopropylidene hydrazine thus obtained dissociates the isopropylidene group. (Machine-translation by Google Translate, not legally binding)
ES0244521A1958-06-091958-10-07Procedure for the obtaining of new hydration derivatives (Machine-translation by Google Translate, not legally binding)
ExpiredES244521A2
(en)
Procedure for the obtaining of trifluorometilfenºlicas aminas of the trifluorometilsulfºnico acid (Machine-translation by Google Translate, not legally binding)