You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl (1R,6S,7S)-4-ethoxy-2,8,10-trioxo-9-azatricyclo[5.3.2.01,6]dodec-3-ene-7-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H19NO6
assistant