You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-[acetyl(benzyl)amino]-2-oxoquinoxalin-1-yl]-N-(1,3-benzodioxol-5-yl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H22N4O5
assistant