Fig. 1. Structures for compounds 1–13 in Bridged cassane derivatives from the seeds of Caesalpinia sappan L. and their cytotoxic activities

Fig. 1. Structures for compounds 1–13.Published as part of Jin, Yue, Wang, Miao, Yan, Yan-Fang, Zhang, Xin-Xin, Li, Xian-Zhe & Gao, Hui-Yuan, 2022, Bridged cassane derivatives from the seeds of Caesalpinia sappan L. and their cytotoxic activities, pp. 1-12 in Phytochemistry (113111) 197 on page 2, DOI: 10.1016/j.phytochem.2022.113111, http://zenodo.org/record/823678