You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 6-bromo-4-(diazomethyl)-7-hydroxychromen-2-one;1-O-[6-bromo-4-(diazomethyl)-2-oxochromen-7-yl] 5-O-[2-[5-[6-bromo-4-(diazomethyl)-2-oxochromen-7-yl]oxy-3,3-dimethyl-5-oxopentanoyl]oxyethyl] 3,3-dimethylpentanedioate;2-(5-chloro-5-oxopentanoyl)oxyethyl 5-chloro-5-oxopentanoate into molecular formula.
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C58H53Br3Cl2N6O21
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