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Esteve Pharmaceuticals SA
Original Assignee
Laboratorios del Dr Esteve SA
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Priority to ES0334159ApriorityCriticalpatent/ES334159A1/en
Publication of ES334159A1publicationCriticalpatent/ES334159A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Procedure to obtain new bis-azomethines, whose general formula is: ** (See formula) ** in which R1, R2 and R3 can be all or separately, hydrogen, nitro groups, radicals, alkyl, alkoxy, aryl, aryloxy or halogen atoms, and which is essentially characterized by the fact that the amines to be condensed with 5-nitrofurfural to give the corresponding azomethines already contain in their structure another azomethine group. (Machine-translation by Google Translate, not legally binding)
ES0334159A1966-11-241966-11-24Procedure to obtain new bis-azometinas. (Machine-translation by Google Translate, not legally binding)
ExpiredES334159A1
(en)
Procedure for the preparation of derivatives of 3,4-dihydroquinazoline dehydrogenable to the correspondents of quinazoline (Machine-translation by Google Translate, not legally binding)