You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(1R)-1-(1,3-benzodioxol-5-yl)ethyl]-2-(2,5-dioxo-4,4-dipropylimidazolidin-1-yl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H27N3O5
assistant