You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(3,5-dimethyl-1,2,4-triazol-1-yl)-N-[(2S)-4-methyl-1-(methylamino)-1-oxopentan-2-yl]benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H25N5O2
assistant