You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[4-[(2-hydroxy-2-methylpropyl)amino]-5-nitro-2-[4-(trifluoromethyl)piperidin-1-yl]phenyl]ethanone into molecular formula.
user
C18H24F3N3O4
assistant