ES317893A1 - A procedure for the preparation of benzodiazepine derivatives. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the preparation of benzodiazepine derivatives. (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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F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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Priority claimed from US415793Aexternal-prioritypatent/US3398139A/en
Application filed by F Hoffmann La Roche AGfiledCriticalF Hoffmann La Roche AG
Publication of ES317893A1publicationCriticalpatent/ES317893A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Nitrogen Condensed Heterocyclic Rings
(AREA)
Abstract
A process for the preparation of benzodiazepine derivatives, characterized in that it consists of reacting a quinazoline derivative of the general formula ** (See formula) ** where R1 represents hydrogen, halogen, allyl, alkoxy, nitro, trifluoromethyl, cyano or alkylthio, R2 represents hydrogen or halogen, R3 represents hydrogen or alkyl having 1 to 6 carbon atoms and X1 and X2 represent halogen, with ammonia, an alkylamine or alkenylamine or an aqueous alkali metal hydroxide. (Machine-translation by Google Translate, not legally binding)
ES0317893A1964-09-291965-09-28A procedure for the preparation of benzodiazepine derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES317893A1
(en)
Procedure for the obtaining of an anti-inflammatory compound based on tri-azenecarboxamidine derivatives. (Machine-translation by Google Translate, not legally binding)