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 N-(2-imidazol-1-ylethyl)-5-[3-[(4-methoxyphenyl)methyl]-1,2,4-oxadiazol-5-yl]-N-methylpyridin-2-amine .
user
C21H22N6O2
assistant