ent-17-Hydroxykauran-3-one (ent-Kaurane-3-oxo-17β-ol; compound 7) is a kaurane-type diterpenoid that can be found in the roots of Euphorbia fischeriana[1].
References
[1] Shi Q, et, al. Phytochemical and cytotoxic studies on the roots of Euphorbia fischeriana. Bioorg Med Chem Lett. 2017 Jan 15;27(2):266-270. DOI:10.1016/j.bmcl.2016.11.063
