You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (1S,2R,5S,9S,12S)-14-methyl-12-phenylsulfanyltetracyclo[7.6.0.01,5.02,12]pentadec-13-en-8-one .
user
C22H26OS
assistant