You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (1S,2S,12R)-1,12-dimethyl-15-oxatetracyclo[10.2.1.02,11.03,8]pentadeca-3,5,7,10,13-pentaene .
user
C16H16O
assistant