You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [2-(furan-2-carbonylamino)-2-oxoethyl] 3-[3-oxo-4-(2-phenylethyl)quinoxalin-2-yl]propanoate into its molecular formula.
user
C26H23N3O6
assistant