AZATETRACYCLIC CARBONITRILES,THEIR PREPARATION,PHARMACEUTICAL PREPARATIONS WHICH CONTAIN THESE COMPOUNDS AND THE USE THEREOF

摘要

Azatetracyclic carbonitriles of the formula I (I) in which R1 is hydrogen, lower alkyl, cycloalkyl-lower alkyl, lower alkenyl or free, etherified or esterified hydroxy-lower alkyl, and X is epoxy, epithio, methylene of a divalent radical of the partial formula (Ia) in which R2 is hydrogen or lower alkyl, and salts of such compounds, their preparation, pharmaceutical preparations which contain these compounds and the use thereof.