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-(3,5-dimethylphenyl)-2-[3-(5-ethyl-1,3,4-oxadiazol-2-yl)-2,5-dimethylpyrrol-1-yl]acetamide .
user
C20H24N4O2
assistant