You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-[4-[N'-(3-bromo-4-fluorophenyl)carbamimidoyl]-1,2,5-oxadiazol-3-yl]-2-phenylmethoxyacetamide ?
user
C18H15BrFN5O3
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