5-((tetrahydro-2H-pyran-2-yl)oxy)pent-3-yn-2-yl (3S,8S,9S,10R,13S,14S,17S)-3-acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylate