You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[9-(3-bicyclo[3.3.1]nonanyl)-9-azabicyclo[3.3.1]nonan-3-yl]-N-(2-nitrophenyl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H35N3O3
assistant