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 [(3'S,5'R,8'S,9'S,10'S,13'S,14'R)-10',13'-dimethyl-17'-oxospiro[1,3-dioxolane-2,7'-2,3,4,5,6,8,9,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthrene]-3'-yl] acetate .
user
C23H34O5
assistant