Showing structure for 1-[6-(acetyloxy)-2-hydroxy-6-methyl-3-oxohept-4-en-2-yl]-8-hydroxy-3a,6,6,9b,11a-pentamethyl-7,10-dioxo-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-2-yl octadeca-9,12-dienoate