You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (E)-1-(2-bromophenyl)-3-[3-[(E)-3-(2-bromophenyl)-3-oxoprop-1-enyl]phenyl]prop-2-en-1-one;2-(2-bromophenyl)-4-[3-[2-(2-bromophenyl)-6-phenylpyridin-4-yl]phenyl]-6-phenylpyridine;1-phenyl-2-pyridin-1-ium-1-ylethanone;bromide is given. What is its corresponding molecular formula?
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C77H54Br5N3O3
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