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Sandoz AG
Original Assignee
Sandoz AG
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Application filed by Sandoz AGfiledCriticalSandoz AG
Priority to ES0244460ApriorityCriticalpatent/ES244460A1/en
Publication of ES244460A1publicationCriticalpatent/ES244460A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Process for obtaining pyrazolone derivatives of the general formula I ** (See formula) ** where R1 signifies a lower alkyl and R2 hydrogen or a lower alkyl, characterized in that piperidyl-4-hydrazine of the general formula II ** (See formula) ** where R 1 has the above-indicated meaning, they are reacted with esters of β -halogeno- α -alkyl-transcinamonic acid of the general formula III ** (See formula) ** where R2 has the meaning indicated above, Hal is by chlorine or bromine and R3 by a low alkyl group. (Machine-translation by Google Translate, not legally binding)
ES0244460A1958-10-031958-10-03Procedure for the obtaining of pirazolone derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES244460A1
(en)
Procedure for the obtaining of new esters 1-alkyl-4-piperidilic O-substitute benzoic acids (Machine-translation by Google Translate, not legally binding)
Procedimine for the obtaining of derivatives of the acid p- [cumarinyl- (3)] - phenyl carbamine (Machine-translation by Google Translate, not legally binding)