You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-[2-[6-[(3-chlorophenyl)methyl]pyridin-2-yl]morpholin-4-yl]-2-oxoethyl]azepan-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H28ClN3O3
assistant