You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,9S,10R)-4,6,9-trimethyl-8,12-dioxa-4,6-diazatetracyclo[8.8.0.02,7.013,18]octadeca-2(7),13,15,17-tetraene-3,5,11-trione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H16N2O5
assistant