Showing structure for 2'-[3-(2-hydroxy-4-methylpent-3-en-1-yl)-3-methyloxiran-2-yl]-4'b,8',8',10'a-tetramethyl-7'-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-decahydrospiro[oxolane-3,1'-phenanthren]-5-one