Synonyms: Spiro[3H-cyclopenta[a]phenanthrene-3,3'-[1,4,2]dioxazolidine],spiro[cholestane-3,3'-[1,4,2]dioxazolidine] deriv.;Spiro[3H-cyclopenta[a]phenanthrene-3,3'-[1,4,2]dioxazolidine],17-(1,5-dimethylhexyl)hexadecahydro-10,13-dimethyl-, [8R-[8a,9b,10a,13a,14b,17a(R*)]]-; [8R-[8a,9b,10a,13a,14b,17a(R*)]]-17-(1,5-Dimethylhexyl)hexadecahydro-10,13-dimethylspiro[3H-cyclopenta[a]phenanthrene-3,3'-[1,4,2]dioxazolidine]