You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 3-[[2-(3-aminopiperidin-1-yl)-3-but-2-ynyl-4-oxoimidazo[4,5-d]pyridazin-5-yl]methyl]-1,4-benzoxazin-2-one into molecular formula.
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C23H23N7O3
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