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 (2S)-2-[[4-[(2-amino-4-oxo-3H-pteridin-6-yl)methylamino]benzoyl]amino]-5-(2-methylprop-2-enylamino)-5-oxopentanoic acid is given. What is its corresponding molecular formula?
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C23H26N8O5
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