(8S,10S,13S,14S,16R)-10,13,16-trimethyl-2-(phenylselanyl)-1,6,7,8,10,12,13,14,15,16-decahydrodispiro[cyclopenta[a]phenanthrene-17,4'-[1,3]dioxolane-5',4''-[1,3]dioxolan]-3(2H)-one

(8S,10R,13S,14S,16R)-10,13,16-trimethyl-1,6,7,8,10,12,13,14,15,16-decahydrodispiro[cyclopenta[a]phenanthrene-17,4'-[1,3]dioxolane-5',4''-[1,3]dioxolan]-3(2H)-one