Fig. 2 in Quassinoids: Phytochemistry and antitumor prospect

Fig. 2. The chemical source of quassinoids in Simaroubaceae family.Published as part of Duan, Zhi-Kang, Zhang, Zhao-Jun, Dong, Shu-Hui, Wang, Yu-Xi, Song, Shao-Jiang & Huang, Xiao-Xiao, 2021, Quassinoids: Phytochemistry and antitumor prospect, pp. 1-22 in Phytochemistry (112769) 187 on page 3, DOI: 10.1016/j.phytochem.2021.112769, http://zenodo.org/record/825887