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 1-[5-(1-benzyl-3-thiophen-2-ylpyrazol-4-yl)-1,2,4-oxadiazol-3-yl]cyclobutan-1-amine .
user
C20H19N5OS
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