Synthesis and pharmacological investigations of new 6-oxo-1,2,3,4-tetrahydro-6H-pyrimido[2,1-b]quinazoline derivatives.

The synthesis and biological activity of a series of 6-oxo-1,2,3,4-tetrahydro-6H-pyrimido[2,1-b]quinazoline is reported. Pharmacological investigations have shown that the compounds exert depressive action on the central nervous system and exhibit neuroleptic activity.