You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-butyl-2-[[2-[methyl(naphthalen-2-ylsulfonyl)amino]acetyl]-[(2-methylphenyl)methyl]amino]-3-phenylpropanamide into molecular formula.
user
C34H39N3O4S
assistant