PYRIMIDINE DERIVATIVES USEFUL FOR THE TREATMENT OF CONDITIONS SUCH AS HYPERTENSION AND HEART FAILURE, AND PROCESS FOR THEIR PREPARATION.

摘要

The invention relates to novel heterocyclic derivatives for pharmaceutical use, of formula BR/ (CF DRAWING IN BOPI) BR/ BR/ in which R1, R2, R3 R4 and A1 are organic radicals, R3 and R4 which may also represent hydrogen, as well as their non-toxic salts, and pharmaceutical compositions which contain them. BR/ The invention also relates to a process for the preparation of these derivatives. BR/ The novel derivatives of the invention are useful for use in the treatment of conditions such as hypertension and heart failure.