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In this study, 1-(3-(4-chlorophenyl)-5-methylthio-1H-1, 2, 4-triazol-1-yl)-butan-1-one discovered previously in our lab was selected as a inhibitor of human dihydroorotate dehydrogenase (HsDHODH) for structural optimization. The co-crystal of HsDHODH with the hit was obtained and analyzed for guiding the subsequent structural optimization. As a result, a series of novel triazole derivatives were designed and synthesized as potent HsDHODH inhibitors. Among them, compound (3-(4-chlorophenyl)-5-ethylthio-1H-1, 2, 4-triazol-1-yl)-furan-2-yl-methanone displayed high potency in the inhibition of HsDHODH with an IC50 value of 1.50 μmol·L-1. Meanwhile, the structure-activity relationships were analyzed based on the biological data and the co-crystal structure. These results provide a valuable reference for optimization of 1H-1, 2, 4-triazole derivatives as HsDHODH inhibitors in the future.
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| 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 |
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