Synthesis and antitumor activity of novel pyridazinone derivatives containing 1,3,4-thiadiazole moiety
作者:Junhu Qin、Mei Zhu、Hongmei Zhu、Liqiong Zhang、Yihong Fu、Jiamin Liu、Zhenchao Wang、Guiping OuYang
DOI:10.1080/10426507.2020.1737062
日期:2020.7.2
4-thiadiazol-2-yl)thio)pyridazin-3(2H)-One), it exhibited good anticancer activity on MGC-803 cells. Besides, introducing fluorine, chlorine, or trifluoromethyl group onto the benzene ring, such as compound 5 m (2-(Tert-butyl)−4-chloro-5-((5-((4-(trifluoromethoxy)phenyl)amino)−1,3,4-thiadiazol-2-yl)thio)pyridazin-3(2H)-One), displayed good anticancer activity on MGC-803 and Bcap-37 cells. Graphical Abstract
摘要 合成了一系列含有1,3,4-噻二唑部分的新型哒嗪酮衍生物,并通过1H NMR、13C NMR、HRMS和IR光谱表征。其中,化合物5c的结构(2-(叔丁基)-4-氯-5-((5-((2-乙基苯基)氨基)-1,3,4-噻二唑-2-基)硫基)通过单晶 X 射线衍射分析明确证实了哒嗪-3(2H)-One)。通过MTT法测定所有目标化合物对MGC-803和Bcap-37的抑制活性,以阿霉素(抑制率分别为95.5±0.4%和95.7±1.0%)为对照。初步结果表明化合物5n(2-(叔丁基)-4-氯-5-((5-((3-氟苯基)氨基)-1,3,4-噻二唑-2-基) )thio)pyridazin-3(2H)-One) 优于其他。MGC-803和Bcap-37细胞在10 μmol/L浓度下的抑制率分别为86.3±2.2%和92.3±0.6%。初步的构效关系表明,当苯环的2-位被甲基取代时,如化合物