elimination, acetate decomposition as well as oxidative degradation of the Schiff base moiety. The bioevaluation of compounds in relation to planktonic and biofilm-embedded microbial cells, as well as to human cells, indicates an improved activity of complexes over ligands. The same tendency was observed for antioxidant activity.
A series of several new isoniazid derivatives, isonicotinic acid 2-(2-hydroxy-8-substituted-tricyclo[7.3.1.02.7]tridec-13-ylidene)-hydrazides, were synthesized and fully characterized. These new isoniazid derivatives were studied regarding their antibacterial activity and cytotoxicity, as well as their influences on some metabolizing enzymes. The best anti-mycobacterial activity was observed in the