You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(3S)-3-[1,3-benzodioxole-5-carbonyl(methyl)amino]-4-phenylbutyl]-1-methylbenzimidazole-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H28N4O4
assistant