You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,4R,10S,12R)-6-methyl-3,11-dioxahexacyclo[7.7.2.02,4.05,18.010,12.013,17]octadeca-1(16),5,7,9(18),13(17),14-hexaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H12O2
assistant