You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[[2-(3,4-dimethoxy-N-(4-methylphenyl)sulfonylanilino)acetyl]-[(4-methylphenyl)methyl]amino]-N-ethylpropanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H37N3O6S
assistant