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 1-(1-benzofuran-2-yl)-3-[4-[(5-methyl-1,2,4-oxadiazol-3-yl)methoxy]phenyl]prop-2-en-1-one .
user
C21H16N2O4
assistant