You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(R)-[(3R)-3-ethyl-4-oxo-2,3-dihydrochromen-7-yl]oxy-pyridin-4-ylmethyl]benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H22N2O4
assistant