You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[4-methyl-6-[1-[(4-methylphenyl)methoxy]butan-2-ylamino]-1,3,5-triazin-2-yl]acetamide into molecular formula.
user
C18H25N5O2
assistant