Brief description of benzodiazepines - 1,4

摘要

The present invention relates to a process for the preparation of benzodiazepines - 1,4 substituted in 3 by a carboxylate radical, characterizes in that it carries out the reaction of a cyclic substituted on a derivative of aminomalonate alkyl in which the amine group has been blocked, chosen from among the monoester of the acid monochloride aminomalonic and oxazolidine dione.