You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 11-methoxy-16-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2(7),9,11,13(17)-pentaen-8-one ?
user
C17H17NO2
assistant