You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(1S,3S,4R,6S,8S,10S,12R,13R,14R,16R)-3,4,6,12,14-pentahydroxy-5,5,14-trimethyl-9-methylidene-16-tetracyclo[11.2.1.01,10.04,8]hexadecanyl] acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H34O7
assistant