You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[4-(4-hydroxypiperidin-1-yl)phenyl]-3-(7-methoxy-1-benzofuran-2-yl)prop-2-en-1-one by IUPAC nomenclature, provide its molecular formula.
user
C23H23NO4
assistant