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 2-[[2-[(2-methylpropan-2-yl)oxy]-2-oxo-1-piperidin-4-ylethyl]amino]-1H-benzimidazole-4-carboxylic acid into molecular formula.
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C19H26N4O4
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