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Sandoz AG
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Sandoz AG
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Priority claimed from CH898466Aexternal-prioritypatent/CH491920A/en
Application filed by Sandoz AGfiledCriticalSandoz AG
Publication of ES341989A1publicationCriticalpatent/ES341989A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Nitrogen Condensed Heterocyclic Rings
(AREA)
Abstract
Procedure for preparing indenopyridine derivatives, of general formula I, **(See formula)** wherein R1 signifies a hydrogen atom, an alkyl, alkenyl or lower alkynyl radical, the benzyl or phenylethyl radical, and R2 signifies a hydrogen, chlorine or bromine atom or a lower alkyl radical, characterized in that water is separated from a hydroxy compound of general formula II, **(See formula)** in which R1 and R2 have the meanings indicated above, by treatment with a strong acid. (Machine-translation by Google Translate, not legally binding)
ES341989A1966-06-211967-06-19Procedure for preparing indonopiridine derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES341989A1
(en)