You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(4-nitro-15-azatetracyclo[10.2.1.05,14.08,13]pentadeca-1(14),2,4,6,8(13),9,11-heptaen-15-yl)ethanone into its molecular formula.
user
C16H10N2O3
assistant