Showing structure for methyl (4r)-4-[(1r,3ar,4s,5ar,9as,11ar)-4-hydroxy-3a,6,6,9a,11a-pentamethyl-7,10-dioxo-1h,2h,3h,4h,5h,5ah,8h,9h,11h-cyclopenta[a]phenanthren-1-yl]pentanoate