Synthesis and algicidal activity of new dichlorobenzylamine derivatives against harmful red tides
作者:Dubok Choi、Sunjong Yu、Seung Ho Baek、Yoon-Ho Kang、Young-Cheol Chang、Hoon Cho
DOI:10.1007/s12257-016-0175-8
日期:2016.6
In the present study, we synthesized 65 dichlorobenzylamine derivatives and investigated their algicidal activity against harmful red tides. The 3,4-dichlorobenzylamine derivatives showed relatively high activity against Cochlodinium polykrikoides, Heterosigma akashiwo, Chattonella marina, and Heterocapsa circularisquama, and the synthesized compounds 27, 28, 33, 34, 35, and 36 showed the highest algicidal activity after 24 h at 0.1 ~ 1.0 μM LC50 against the four harmful algae species. To verify the safety of the compounds, acute ecotoxicology tests using the water flea (Daphnia magna) and zebrafish (Danio rerio) were conducted, and the tests confirmed that compounds 33 and 34 were not harmful because the target organisms showed high survival rates at 15 μM. The results indicate that compounds 33 and 34 are suitable substances for use in controlling harmful algae species.
在本研究中,我们合成了65种二氯苄胺衍生物,并研究了它们对有害赤潮的藻类灭杀活性。3,4-二氯苄胺衍生物对多刺菱形藻、赤潮藻、海洋Chattonella以及圆形裙藻显示出较高的活性,而合成的化合物27、28、33、34、35和36在0.1 ~ 1.0 μM LC50条件下,在24小时后对这四种有害藻类展现出最高的藻类灭杀活性。为了验证这些化合物的安全性,我们进行了使用水蚤(Daphnia magna)和斑马鱼(Danio rerio)的急性生态毒理学测试,结果表明化合物33和34并不有害,因为目标生物在15 μM浓度下显示出较高的生存率。这些结果表明化合物33和34适合作为控制有害藻类的物质。