PROCEDEU PENTRU PREPARAREA UNOR DERIVATI BENZODIAZEPINICI

摘要

1321938 Benzodiazepines F HOFFMANNLA ROCHE & CO AG 23 Dec 1971 [23 Dec 1970] 59980/71 Heading C2C Compounds of the general formula (R, R1, R2 = H, C 1-7 alkyl; R3=H, halogen; R4,5=H or R4+5= additional bond; R6,7 alone or together = moiety removable by acid hydrolysis), 4-oxides of the dihydrobenzodiazepines and acid addition salts of the basic compounds are prepared by cyclizing a compound of the formula optionally followed by one or more of the steps reduction, oxidation, alkylation, salt formation. The above compounds are muscle relaxants, sedatives and anticonvulsants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.