You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (17-acetyloxy-13-methyl-3-oxo-1,2,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-10-yl)methyl acetate .
user
C23H30O5
assistant