1. Chromone Derivatives from the Stems of Sichuan Local Sun Cured Tobacco and Their Anti-TMV Activity
- Author
-
Na Lv, Qi-Li Mi, Chun-Bo Liu, Ling Jun, Yin-Ke Li, Guang-Yu Yang, Gan-Peng Li, Qiu-Fen Hu, Liu Xin, Xiang Haiying, Li Xuemei, Gao Qian, Wei-Shong Kong, and Dian Luo
- Subjects
Mosaic virus ,010405 organic chemistry ,Chemistry ,Stereochemistry ,Positive control ,Plant Science ,General Chemistry ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,0104 chemical sciences ,010404 medicinal & biomolecular chemistry ,chemistry.chemical_compound ,Chromone ,Tobacco mosaic virus ,Two-dimensional nuclear magnetic resonance spectroscopy - Abstract
Two new chromone derivatives (1 and 2), together with four known (3–6) ones, were isolated from the stems of a local sun cured tobacco (Fenghuang tobacco, widely cultivated in Shifang prefecture, Sichuan Province). Their structures were elucidated by spectroscopic methods, including extensive 1D 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 high anti-TMV activities with inhibition rates of 35.8 and 28.6% at the concentration of 20 μM. These rates are close to that of the positive control.
- Published
- 2021