You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name tert-butyl N-[2-[heptyl-[1-(4-methylphenyl)-2-oxo-2-(propan-2-ylamino)ethyl]amino]-2-oxoethyl]carbamate into its molecular formula.
user
C26H43N3O4
assistant