Synthesis, crystal structure, superoxide scavenging activity, anticancer and docking studies of novel adamantyl nitroxide derivatives

Autor: Chengtao Lu, Aidong Wen, Zhifu Yang, Jin Sun, Xiaohe Zhu, Kai Gao, Jinyi Zhao, Ying Song, Shan Wang, Wei Bu, Minna Yao, Enhu Zhang
Rok vydání: 2016
Předmět:
Zdroj: Journal of Molecular Structure. 1108:611-617
ISSN: 0022-2860
DOI: 10.1016/j.molstruc.2015.12.048
Popis: A novel adamantyl nitroxide derivatives has been synthesized and characterized by IR, ESI-MS and elemental analysis. Quantum chemical calculations have also been performed to calculate the molecular geometry using density functional theory (B3LYP) with the 6-31G (d,p) basis set. The calculated results showed that the optimized geometry can well reproduce the crystal structure. The antioxidant and antiproliferative activity were evaluated by superoxide (NBT) and MTT assay. The adamantyl nitroxide derivatives exhibited stronger scavenging ability towards O 2 · − radicals when compared to Vitamin C, and demonstrated a remarked anticancer activity against all the tested cell lines, especially Bel-7404 cells with IC50 of 43.3 μM, compared to the positive control Sorafenib (IC50 = 92.0 μM). The results of molecular docking within EGFR using AutoDock confirmed that the titled compound favorably fitted into the ATP binding site of EGFR and would be a potential anticancer agent.
Databáze: OpenAIRE