You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule tert-butyl N-[1-[tert-butyl-[2-(butylamino)-1-(4-ethylphenyl)-2-oxoethyl]amino]-1-oxo-3-phenylpropan-2-yl]carbamate .
user
C32H47N3O4
assistant