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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Novartis AG
Original Assignee
Ciba Geigy AG
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Publication date
Priority claimed from CH1088571Aexternal-prioritypatent/CH553801A/en
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of ES405046A1publicationCriticalpatent/ES405046A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Procedure for obtaining new diazepine derivatives of general formula I **(See formula)** wherein R1 represents hydrogen or an alkyl group with 1 to 3 carbon atoms, R2 and R3 mean hydrogen, alkyl or hydroxyalkyl groups with 1 to 6 carbon atoms, aralkyl groups with 7 to 9 carbon atoms, the alkyl groups being able lower R2 and R3 are linked to each other in the β or γ position also directly or through an oxygen atom, the imino group, a lower alkylimino or hydroxyalkylimino group with a maximum of 4 carbon atoms, and rings A and B may be substituted by halogen up to atomic number 35, alkyl or alkoxy groups, in each case with 1 to 6 carbon atoms, trifluoromethyl groups or nitro groups, their 5-oxides and the salts of the compounds of general formula I and their 5-oxides with inorganic and organic acids, characterized in that an ester capable of reacting a compound of general formula II **(See formula)** wherein R1 has the meaning indicated under formula I and rings A and B may be substituted as indicated under formula I, or the 5-oxide of a compound thereof, is reacted with a compound of general formula III **(See formula)** wherein R2 and R3 have the meaning indicated under formula I, or with an alkali metal derivative of a compound thereof and, if desired, the reaction product obtained is transformed into an addition salt with an inorganic acid or organic. (Machine-translation by Google Translate, not legally binding)
ES405046A1971-07-231972-07-21Procedure for the obtaining of new diazepine derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES405046A1
(en)
Procedure for the preparation of amino-derivatives of pirazolo (3,4-b) pyridine-5-carboxylic acids. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of piperazine replaced asymmetrically (Machine-translation by Google Translate, not legally binding)