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 4-[[6-[2-(azepan-4-ylmethyl)-5-chloropyridin-4-yl]pyrazin-2-yl]oxymethyl]oxane-4-carbonitrile into molecular formula.
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C23H28ClN5O2
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