You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [(1R,2R,8R,10S,11S,14S,15S)-2,8,15-trimethyl-7-oxo-14-tetracyclo[8.7.0.02,8.011,15]heptadec-5-enyl] acetate into molecular formula.
user
C22H32O3
assistant