You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(2-amino-2-methylpropanoyl)-N-[1-[4-[2-(3-aminopiperidin-1-yl)propyl]phenyl]-2-oxopyrimidin-4-yl]piperazine-1-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H40N8O3
assistant