You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule N-(4-tert-butyl-1,3-thiazol-2-yl)-3-[3-(4-ethylphenyl)-1,2,4-oxadiazol-5-yl]propanamide ?
user
C20H24N4O2S
assistant