You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
oxido-[4-[(9-phenylmethoxycarbonyl-3-oxa-9-azabicyclo[3.3.1]nonan-7-yl)oxycarbonyl]phenyl]azanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H24N2O6
assistant