Showing structure for (1r,3ar,5ar,6s,9as,11ar)-1-[(1s)-1-[(2s)-5,5-dimethyloxolan-2-yl]ethyl]-3a,6,9a,11a-tetramethyl-1h,2h,3h,4h,5h,5ah,6h,8h,9h,10h,11h-cyclopenta[a]phenanthren-7-one