You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 11-hydroxy-1,10-dimethyl-6-methylidene-4,13-dioxatetracyclo[10.1.1.02,11.03,7]tetradec-9-en-5-one .
user
C15H18O4
assistant