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,3R,4S,6R,8S,9S,10S,11S,14S,15S,17S)-4,10,15,17-tetrahydroxy-5,5,10,15-tetramethyl-7-oxapentacyclo[12.2.1.01,11.04,9.06,8]heptadecan-3-yl] acetate into molecular formula.
user
C22H34O7
assistant