中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-bromo-1-(4-bromo-3-nitro-phenyl)-ethanone | 22055-48-7 | C8H5Br2NO3 | 322.941 |
1-溴-4-乙基-2-硝基-苯 | 1-bromo-4-ethyl-2-nitro-benzene | 161988-89-2 | C8H8BrNO2 | 230.061 |
—— | 1-(4-bromo-3-nitrophenyl)ethanol | 38383-27-6 | C8H8BrNO3 | 246.06 |
—— | 4-bromo-3-nitrostyrene | 38383-33-4 | C8H6BrNO2 | 228.045 |
1-(3-氨基-4-溴苯基)乙酮 5-乙酰基-2-溴苯胺 | 3'-amino-4'-bromoacetophenone | 37148-51-9 | C8H8BrNO | 214.062 |
4-氨基-3-硝基苯乙酮 | 1-(4-amino-3-nitrophenyl)ethanone | 1432-42-4 | C8H8N2O3 | 180.163 |
4'-羟基-3'-硝基苯乙酮 | 4'-hydroxy-3'-nitroacetophenone | 6322-56-1 | C8H7NO4 | 181.148 |
—— | 1-(3-nitro-4-vinyl-phenyl)-ethanone | 926634-68-6 | C10H9NO3 | 191.186 |
—— | 1-(4-butyl-3-nitrophenyl)ethan-1-one | 1565829-49-3 | C12H15NO3 | 221.256 |
—— | 2-Nitro-4-acetyl-diphenylamin | 2043-20-1 | C14H12N2O3 | 256.261 |
In this study, a novel series of 1,2-disubstituted benzo[d]imidazoles was rationally designed as VEGFR-2 inhibitors targeting hepatocellular carcinoma. Our design strategy is two-fold; it aimed first at studying the effect of replacing the 5-methylfuryl moiety of the well-known antiangiogenic 2-furylbenzimidazoles with an isopropyl moiety on the VEGFR-2 inhibitory activity and the cytotoxic activity. Our second objective was to further optimize the structures of the benzimidazole derivatives through elongation of the side chains at their one-position for the design of more potent type II-like VEGFR-2 inhibitors. The designed 1,2-disubstituted benzimidazoles demonstrated potent cytotoxic activity against the HepG2 cell line, reaching IC50 = 1.98 μM in comparison to sorafenib (IC50 = 10.99 μM). In addition, the synthesized compounds revealed promising VEGFR-2 inhibitory activity in the HepG2 cell line, e.g., compounds 17a and 6 showed 82% and 80% inhibition, respectively, in comparison to sorafenib (% inhibition = 92%). Studying the effect of 17a on the HepG2 cell cycle demonstrated that 17a arrested the cell cycle at the G2/M phase and induced a dose-dependent apoptotic effect. Molecular docking studies of the synthesized 1,2-disubstituted benzimidazoles in the VEGFR-2 active site displayed their ability to accomplish the essential hydrogen bonding and hydrophobic interactions for optimum inhibitory activity.