Fig. 4From: Novel quinazolines bearing 1,3,4-thiadiazole-aryl urea derivative as anticancer agents: design, synthesis, molecular docking, DFT and bioactivity evaluationsFukui functions for a nucleophilic attack f+(r) b electrophilic attack f− (r) c dual descriptor (Δf), and d radical attack f0 for 8c ligand at B3LYP/6–31 g (d, p) level. The green and blue regions show positive and negative values of these functionsBack to article page