Two New Furo3,2-cQuinolines from the Stems of Nicotiana tabacum and Their Anti-Tobacco Mosaic Virus Activity

摘要

Two new (1 and 2), together with two known (3 and 4), quinoline alkaloids were isolated from the stems of Nicotiana tabacum. Their structures were elucidated using spectroscopic methods, including extensive 1H, 13C, and 2D NMR techniques. Compounds 1 and 2 were tested for their anti-tobacco mosaic virus (anti-TMV) activity. The results showed that compounds 1 and 2 exhibited potential anti-TMV activity with inhibition rates of 28.2 and 25.8% respectively.