ES234575A1 - Procedure for the obtaining of new derivatives of pirazolºn (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the obtaining of new derivatives of pirazolºn (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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Sandoz AG
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Sandoz AG
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Publication of ES234575A1publicationCriticalpatent/ES234575A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Process for obtaining new pyrazolone derivatives of the formula I ** (See formula) ** characterized in that by methods already known per se, the piperidyl-4-hydrazine derivatives of the general formula II are reacted ** (See formula) ** wherein R1 and R2 have the meaning indicated above, with β -cetonic acids or their reactable derivatives of the general formula III R3-CO-CHR4-COX III wherein R3 and R4 has the meaning indicated above in formula I and X means a hydroxyl group, an alkoxy group containing 1-4 carbon atoms or a primary or secondary amine group, and, if appropriate, isomers that have formed here. (Machine-translation by Google Translate, not legally binding)
ES0234575A1956-04-071957-03-29Procedure for the obtaining of new derivatives of pirazolºn (Machine-translation by Google Translate, not legally binding)
ExpiredES234575A1
(en)
Procedimine for the obtaining of derivatives of the acid p- [cumarinyl- (3)] - phenyl carbamine (Machine-translation by Google Translate, not legally binding)