You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(ethylamino)-N-(9-methyl-9-azabicyclo[3.3.1]nonan-3-yl)oxolane-3-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H29N3O2
assistant