You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-methyl-4-[1-(4-oxo-6,7-dihydro-5H-1-benzofuran-3-carbonyl)piperidin-4-yl]-1H-pyrimidin-6-one ?
user
C19H21N3O4
assistant