method for preparation of heterocyclic compounds (py - rimido 1,2a) and thera - peutische preparations which contain such verbindin gene and thus obtained.formed therapeutic preparations.

摘要

The compounds of the general formula I in which R denotes hydrogen or C1- to C6-alkyl, R1 denotes C1- to C6-alkyl, R2 and R3 independently of one another denote hydrogen or C1- to C6- alkyl, m represents 0 and n represents 1, have analgesic, anti-inflammatory PG-antagonistic and antidepressant actions. These compounds are prepared by reducing a fused pyrimidine derivative of the general formula II. IMAGE