Pyrimidine compounds having activity as a cardiotonic anti- hypertensive cerebrovascular vasodilator and anti-platelet aggregation agent

摘要

The invention relates to pyrimidine compounds of the formula: ##STR1## wherein the substituents R.sup.1, R.sup.2, R.sup.3, R.sup.4, R. sup.5 and R.sup.6 are as herein defined, having activity as a cardiotonic, anti- hypertensive, cerebrovascular vasodilator and anti-platelet aggregation agent.