(8S,8’S,9S,9’S,10R,10’R,11S,11’S,13S,13’S,14S,14’S,17R,17’R)-17,17′-((2S,4R)-2-(hydroxymethyl)-1,3-dioxolane-2,4-diyl)bis(11,17-dihydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one)