You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 1-[(1S,2R,5R,7R,8R,10S,11S,14S,15S)-8-methoxy-2,15-dimethyl-14-pentacyclo[8.7.0.02,7.05,7.011,15]heptadecanyl]ethanone ?
user
C22H34O2
assistant