To design and synthesize novel vanillin derivatives and evaluate their anti-proliferation effect against HeLa cells.
Taking vanillin derivative SBE-13 as lead, 2-chloroquinoline fragment were introduced into the new compounds by the methods of electronic isosteric and skeleton transition. 2-Chloro-3-chloromethylquinoline and vanillin were used as raw materials to obtain the target compounds 4a~4k by etherification and reductive amination.
A total of 11 novel vanillin derivatives were designed and synthesized, and their structures were confirmed by 1H NMR and ESI-MS. Most of the compounds exhibited good antiproliferative activities against HeLa cells. Notably, compound 4b potently inhibited HeLa cells with an IC50=9.79 μmol·L-1, a 10-fold improvement over SBE-13 (IC50=78.30 μmol·L-1).
Compound 4b displayed significant antiproliferative effect in vitro, which is worthy of further study.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |