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-[ethyl-[1-(4-ethynylphenyl)-2-(4-methoxyanilino)-2-oxoethyl]amino]-3-methyl-1-oxopentan-2-yl]carbamate .
user
C30H39N3O5
assistant