You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-ethyl-3-methyl-6-(5-oxo-3,4-diazabicyclo[4.1.0]hept-2-en-2-yl)-3,4-dihydro-1H-quinolin-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H19N3O2
assistant