You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4,7,7-trimethyl-3-oxo-N-(3,6,6-trimethyl-1-pyridin-2-yl-5,7-dihydro-4H-indazol-4-yl)-2-oxabicyclo[2.2.1]heptane-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H32N4O3
assistant