You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-methyl-2-(2-oxo-5-thiophen-2-yl-1,3,4-oxadiazol-3-yl)-N-[2-oxo-2-(2,4,6-trimethylanilino)ethyl]acetamide into its molecular formula.
user
C20H22N4O4S
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