%0 Journal Article %T Flavonoids From the Flowers of Sophora davidii and Their Anti %A Duobin Mao %A Haijian Su %A Haiying Tian %A Jiaxiang Fei %A Jing Yang %A Pengfei Yang %A Shen Huang %A Sulin Hu %J Natural Product Communications %@ 1555-9475 %D 2019 %R 10.1177/1934578X19856786 %X A new pterocarpan, named davidicarpan A (1), together with 9 known flavonoids, including 3 pterocarpans (2-4) and 6 isoflavones (5-10), were isolated from the flowers of Sophora davidii (France.) Pavol. Their structures were confirmed by high-resolution electrospray ionization-mass spectrometry, one-dimensional (1D) and 2D nuclear magnetic resonance spectroscopy, and comparison with reported literature values. Compounds 1 and 4 exhibited anti-tobacco mosaic virus (anti-TMV) activities with inhibition rates of 27.4% and 26.2%, which was higher than that of the positive control, ningnamycin %K Sophora davidii %K pterocarpan %K flavonoid %K isoflavone %K anti-TMV %U https://journals.sagepub.com/doi/full/10.1177/1934578X19856786