Showing structure for methyl (5z)-6-[(1s,9as,11ar)-3,7-dihydroxy-1,3a,6,6,9a,11a-hexamethyl-4,10-dioxo-2h,3h,5h,5ah,7h,8h,9h,11h-cyclopenta[a]phenanthren-1-yl]-2-methyl-4-oxohept-5-enoate