You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 3-[5-(4-phenylphenyl)-1,3,4-oxadiazol-2-yl]-N-[2-(1H-pyrazol-4-yl)ethyl]propanamide .
user
C22H21N5O2
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