A novel medium size lactam ring analoges as antibacterial agents: Synthesis, biological evaluation and molecular docking studies.

A novel series of medium size (S)-3-alkyl-3,4,6,7-tetrahydro-1H-benzo[e][1,4]diazonine-2,5-dione analogues were synthesized from (E)-3-(2-nitrophenyl)acrylicacid reacting with various amino acid esters using Di-isopropyl Carbodiimide as a coupling agent. The final cyclization is carried out by using reagent 1-Ethyl-3(3-dimethylaminopropyl) Carbodiimide Hydrochloride. The synthesized compounds have been supported by Mass, H-NMR and C-NMR. Further antibacterial studies were conducted, where some molecules are noticed with potent activity, especially molecule shown highest activity which was also supported by molecular docking studies. All final molecules were docked with enzyme peptide deformylase to determine the probable binding conformation.