In this paper, novel synthetic methods, including microwave O-alkylation, were used to produce several chrysin derivatives. These compounds purified, characterised and tested on different cell lines bacterial strains. From family, 7-(2,4-dinitrophenoxy)-5-hydroxy-3-phenyl-4H-chromen-4-one (C3) was shown be extremely active strains methicillin-resistant Staphylococcus aureus, Pseudomonas aerugin...