You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(7-chloro-1,8-naphthyridin-2-yl)-3-(1-methylpiperidin-4-yl)oxy-3H-isoindol-1-one into its molecular formula.
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C22H21ClN4O2
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