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ZIOLNISKI KRASNOSLAWSKI
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ZIOLNISKI KRASNOSLAWSKI
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Application filed by ZIOLNISKI KRASNOSLAWSKIfiledCriticalZIOLNISKI KRASNOSLAWSKI
Priority to ES339508ApriorityCriticalpatent/ES339508A1/en
Publication of ES339508A1publicationCriticalpatent/ES339508A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Preparation process for benzodiazepine derivatives, characterized by the preparation of 5-phenyl 1,4 benzodiazepine 2-one, of general formula (I) **(See formula)** where R1 represents a hydrogen atom, a halogen or a nitro group, R2 represents a hydrogen atom or a lower alkyl group and R3 represents an atom of a hydrogen atom, an alkyl or aryl group, a hydroxyl or alkoxy group, excluding derivatives in which R1 represents a halogen and R3 represents hydrogen, an alkyl or aryl group simultaneously. The process consists of the reaction of 2-phthalimido-acylamido benzophenone of general formula (I) **(See formula)** with hydrazine hydrate R1 R2 and R3 have the meanings previously attributed. (Machine-translation by Google Translate, not legally binding)
ES339508A1967-04-191967-04-19Procedure for preparation of benzodiazepine derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES339508A1
(en)