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 N-[2-(4-chlorophenyl)ethyl]-2-[2-(5-methyl-1,2,4-oxadiazol-3-yl)pyrrolidin-1-yl]acetamide .
user
C17H21ClN4O2
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