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system
Name the molecular formula for the molecule established as tert-butyl 3-[C-(2-amino-3,3,3-trifluoroprop-1-enyl)-N-(4-bromophenyl)carbonimidoyl]oxyazetidine-1-carboxylate using the IUPAC nomenclature.
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C18H21BrF3N3O3
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