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Sandoz AG
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Sandoz AG
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Application filed by Sandoz AGfiledCriticalSandoz AG
Publication of ES303395A1publicationCriticalpatent/ES303395A1/en
"Process for the production of pyrazolone derivatives" of formulas I and Ia, ** (See formula) ** wherein it means a hydrogen or halogen atom or a lower alkoxy radical, and their acid addition salts, characterized in that 1-heocyl-piperidyl-4-hydrazine of formula II is condensed, ** (See formula) ** with a " -carboxylic α -substituted " or an " substituted β -ketocarboxylic acid " alkyl ester of formula III, ** (See formula) ** wherein R1 has the meaning indicated above and means a hydrogen atom or a lower alkyl radical and when it is desired to produce an acid addition salt, the resulting compound I or Ia is reacted with an organic or inorganic acid. (Machine-translation by Google Translate, not legally binding)
ES0303395A1963-08-261964-08-24Procedure for the production of pirazolinic derivatives (Machine-translation by Google Translate, not legally binding)
ExpiredES303395A1
(en)
A method to produce new derivatives of indolilalcohil guanidine and salts from themselves (Machine-translation by Google Translate, not legally binding)