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 methyl 3-[3-[[6-bromo-2-[(2S)-butan-2-yl]-4-oxoquinazolin-3-yl]iminomethyl]-2,5-dimethylpyrrol-1-yl]benzoate .
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C27H27BrN4O3
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