You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[1-[2-[[hydroxy(naphthalen-2-yl)methyl]amino]ethyl]piperidin-4-yl]-1H-benzimidazol-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H28N4O2
assistant