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,5R)-2,5-dimethyl-10-oxatetracyclo[5.3.3.01,7.02,5]trideca-3,11-diene-6,9-dione .
user
C14H14O3
assistant