Synthesis and biological properties of 4-hydroxy, 4-thio-5-pyrimidine derivatives.

4-Oxy as well as 4-thio-5-carboxy and 5-hydroxy pyrimidine derivatives were synthesized and their microbiological properties were compared.

Synthesis and antibacterial activity of 1,3-diarylpyrimido[4,5-d]pyrimidines.

This paper describes the synthesis of 4,5-diaminoderivatives of pyrimidine and pyrimido [4,5-d] pyrimidines and evaluation of their antibacterial activity on 9 selected bacterial species relatif the changes in the chemical structure to an increase in the bioactive properties.