作者:Wanjun Ni、Chaojie Li、Yuxiu Liu、Hongjian Song、Lizhong Wang、Haibin Song、Qingmin Wang
DOI:10.1021/acs.jafc.6b05474
日期:2017.3.15
For the first time, the botanic source natural product matrine was reported to have more potent inhibitory activity against tobacco mosaic virus (TMV) than the commercial virucide ribavirin. On the basis of the structural diversity modification strategy, a series of matrine derivatives was synthesized and systematically evaluated for their antiviral activity against TMV, fungicidal activity, and insecticidal activity. As a result, compounds 3 (inhibitory rate 67.3%, 69.5%, 63.7%, 63.0% at 500 mu g/mL for in vitro activity, inactivation, curative, and protection activities in vivo, respectively), 16 (66.7%, 60.7%, 63.8%, 68.9% at 500 mu g/mL), and 32 (74.6%, 76.9%, 72.3%, 75.7% at 500 mu g/mL) were found to have much higher anti-TMV activity than ribavirin (40.8%, 37.5%, 38.2%, 37.7% at 500 mu g/mL), even exhibiting as well as NK-007 (70.3%, 66.1%, 68.4%, 67.5% at 500 mu g/mL), which was an efficient compound created by our group previously. At the same time, it was found that matrine and its derivatives had a broad spectrum fungicidal activity (14 fungi), especially the inhibition of compound 32 against Phytophthora capsici Leonian reached 96.4% at a concentration of 50,mu g/mL. What's more, all compounds exhibited very good insecticidal activity to five kinds of insects (including Mythimna Separate, Helicoverpa Armigera, Ostrinia Nubilalis, Plutella xylostella, and Culex Pipiens Pallens); especially, the inhibition rate of C. Pipiens Pallens of compound 22 could still reach 70% at 1,mu g/mL.