Answers are grounded in this paper and cite their sources.
Cinanthrenol A (1), a new steroid composed of a phenanthrene and a spiro[2,4]heptane system, was isolated from the marine sponge Cinachyrella sp. It is the first phenathrene-containing steroid with estrogen activity.
No takes yet. Share an insight, caveat, or question.
Machida et al. (2014) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: