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 4-[2-[4-[4-(2-methoxycarbonylbutyl)phenyl]-3-methyl-5-oxo-1,2,4-triazol-1-yl]ethyl]piperidine-1-carboxylate .
user
C27H40N4O5
assistant