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 3-[4-[4-(4-carbamimidoylphenoxy)butyl]-2,3-dioxopiperazin-1-yl]-3-(furan-3-yl)propanoic acid ?
user
C22H26N4O6
assistant