You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-(5-tert-butyl-2-methoxyphenyl)-3-[4-(6-chloro-5-nitropyridin-3-yl)naphthalen-1-yl]urea into its molecular formula.
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C27H25ClN4O4
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