You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,2R,4R,7R,10R)-2,7,11,11-tetramethyl-3,12-dioxatetracyclo[8.2.1.01,7.02,4]tridecane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H24O2
assistant