New N-oxide alkaloids from the stems of Sinomenium acutum
作者:Hui-Ling Zeng、Yu-Xing Cai、Shi-Shu Xu、Si-Fang Wu、Ya-Lin Li、Xin-Lin Chen、Ling-Yi Kong、Jian-Guang Luo
DOI:10.1016/j.fitote.2022.105404
日期:2023.3
Six newalkaloids (1–6) and six known alkaloids (7–12) were obtained from the stems of Sinomenium acutum. Among them, compounds 1–3 and 6 were four N-oxidealkaloids. The structures and absolute configurations of these newalkaloids were elucidated through comprehensive data of 1D and 2D NMR, HRESIMS and ECD spectra. All isolated compounds were evaluated in vitro for their inhibitory activities against