Fig. 1 in Bufadienolides from the whole plants of Helleborus foetidus and their cytotoxicity

Fig. 1. Chemical structures of 1–6.Published as part of Iguchi, Tomoki, Yokosuka, Akihito, Kawahata, Riko, Andou, Madoka & Mimaki, Yoshihiro, 2020, Bufadienolides from the whole plants of Helleborus foetidus and their cytotoxicity, pp. 1-8 in Phytochemistry (112277) 172 on page 3, DOI: 10.1016/j.phytochem.2020.112277, http://zenodo.org/record/829411