Biooriented Synthesis of Ibuprofen-Clubbed Novel -Schiff Base Derivatives as Potential Hits for Malignant Glioma: Anticancer Activity and Approach.

This research work is based on the synthesis of -Schiff base derivatives of the commercially available ibuprofen drug in outstanding yields through multistep reactions. Structures of the synthesized compounds were confirmed by the help of modern spectroscopic techniques including high-resolution electrospray ionization mass spectrometry (HR-ESI-MS), H NMR, and C NMR. The synthesized compounds were evaluated for their anticancer activity using a normal human embryonic kidney HEK293 cell and U87-malignant glioma (ATCC-HTB-14) as a cancer cell line. All of the synthesized compounds among the series exhibited excellent to less antiproliferative activity having IC values ranging from 5.75 ± 0.43 to 150.45 ± 0.20 μM. Among them, compound (IC = 5.75 ± 0.43 μM) was found as the most potent antiprolifarative agent, while , and exhibited good activity with IC values from 24.17 ± 0.46 to 43.71 ± 0.07 μM. These findings suggest that these cells (HEK293) are less cytotoxic to the activities of compounds and increase the cancer cell death in brain, while the lower cytotoxicity of the potent compounds in noncancerous cells suggests that these derivatives will provide promising treatment for patients suffering from brain cancer. The results of the docking study exposed a promising affinity of the active compounds toward casein kinase-2 enzyme, which shows green signal for cancer treatment.