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 3-(4-bromophenyl)-N-[[[(1S,2S)-2-phenylcyclopropanecarbonyl]amino]carbamothioyl]prop-2-enamide .
user
C20H18BrN3O2S
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