You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(furan-2-ylmethylcarbamoyl)-2-[3-(2-methylpropyl)-2,4,5-trioxoimidazolidin-1-yl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H18N4O6
assistant