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Since Schiff base derivatives have a wide range of biological activities, novel Schiff base derivatives were designed and synthesized in satisfactory yields.  1 H NMR,  13 C NMR, IR, mass and elemental analysis were used to provide a complete structural characterization of the new synthesized Schiff bases ( 3–6 ). The antiproliferative activity properties of compounds were tested against two human cancer cell lines including breast (MDA-MB-231) and colon (DLD-1). The compounds overall did not show high cytotoxic activity against both cancer cell lines compared to the positive control drug cisplatin. The synthesized Schiff base compounds were further screened for their  in vitro  antimicrobial activities against five bacterial strains ( Escherichia coli  (ATTC 25922),  Salmonella thyphimurium  (ATTC 14028),  Staphylococcus aureus  (ATCC 25923),  Bacillus subtilis  (ATCC 6633),  Bacillus cereus  (ATCC 11778)) and two fungal strains ( Candida albicans  (ATCC 10231) and  Candida glabrata  (ATCC 90030)) using broth micro dilution techniques. The mode of action for the antimicrobial effect in the experimental part was explored through molecular docking. The stability of target-ligand complexes obtained from the docking were assessed through molecular dynamics simulation. The binding affinity of the compounds toward the target protein were also investigated using MMPBSA. Furthermore, electrochemical properties of some compounds was analyzed by DFT calculations. By using POM theory, it becomes more easy to control the bioactivity of drugs. Here, how the physicochemical properties play a crucial role in the orientation of their bioactivity was demonstrated. Communicated by Ramaswamy H. Sarma

journal of biomolecular structure and dynamics

Drug design of new therapeutic agents: molecular docking, molecular dynamics simulation, DFT and POM analyses of new Schiff base ligands and impact of substituents on bioactivity of their potential antifungal pharmacophore site