A new triterpenoid saponin and a new natural saponin from the roots of Bupleurum scorzonerifolium willd - Zi-Wei Li; Jia-Tong Wu; Yu Bi; Meng-Meng Li; Anam Naseem; Juan Pan; Wei Guan; Zhi-Chao Hao; Hai-Xue Kuang; Qing-Shan Chen; Li-Li Zhang; Yan Liu; et al. (Natural Product Research, 2025)