You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R)-2-[2-bromo-6-[[6-bromo-2-[(2R)-butan-2-yl]-4-oxoquinazolin-3-yl]iminomethyl]-4-chlorophenoxy]propanoic acid into its molecular formula.
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C22H20Br2ClN3O4
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