You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,2S,7R,10S,11R,15R)-6,6,13,13-tetramethyl-5,9,12,14,16-pentaoxatetracyclo[8.6.0.02,7.011,15]hexadecan-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H22O6
assistant