You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 6-[[(2S)-1-amino-1-oxopropan-2-yl]amino]-2-[4-(7-chloro-3-oxo-5H-1,4-benzoxazepin-4-yl)phenyl]pyrimidine-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C23H21ClN6O4
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