(5R,10R,13S,17S)-13-methyl-1,2,4,6,7,8,12,13,14,15,16,17-dodecahydrospiro[5,10-epoxycyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-ol
(5R,10R,13S,17S)-13-methyl-1,2,4,6,7,8,12,13,14,15,16,17-dodecahydrospiro[5,10-epoxycyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-ol