You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-amino-N-[2-(5-methyl-1,2,4-oxadiazol-3-yl)ethyl]-1-benzofuran-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C14H14N4O3
assistant