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 tert-butyl 4-[2-[(1S)-1-[(2-amino-6-chloro-5-cyanopyrimidin-4-yl)amino]ethyl]-5-chloro-4-oxoquinazolin-3-yl]piperidine-1-carboxylate is given. What is its corresponding molecular formula?
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C25H28Cl2N8O3
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