You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-(4-chlorophenoxy)-N-[5-[4-(dimethylsulfamoyl)phenyl]-1,3,4-oxadiazol-2-yl]-2-methylpropanamide .
user
C20H21ClN4O5S
assistant