Design and synthesis of guanylthiourea derivatives as potential inhibitors of Plasmodium falciparum dihydrofolate reductase enzyme.

A new class of compounds based on S-benzylated guanylthiourea has been designed as potential PfDHFR inhibitors using computer aided methods (molecular electrostatic potential, molecular docking). Several compounds in this class have been synthesized starting from guanylthiourea and alkyl bromides. In vitro studies showed that two compounds from this class are active with the IC50 value of 100μM and 400nM.