You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-(1-methylpyrrol-2-yl)butan-2-yl]-3-(triazol-1-ylmethyl)piperidine-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H28N6O
assistant