The molecular study needs a control molecule to compare the results of L1 and L2.
Second one that is very important for this paper: The activity of L2 molecule against Bacillus Megaterium (PDB 4j6u) was significant with a binding energy of -8.8 kcal/mol and three hydrogen bond interactions, which reveals the antimicrobial activity of the molecule. Both compounds are biologically active, but their activity was moderate which did not support their efforts.