You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[[[5-(2,3-dihydro-1-benzofuran-5-yl)pyridin-3-yl]-hydroxymethyl]amino]-1-[(4-methylphenyl)methyl]pyridin-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H25N3O3
assistant