You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[2-(5-propan-2-yl-1,2,4-oxadiazol-3-yl)pyrrolidin-1-yl]quinoline-6-carbonitrile into its molecular formula.
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C19H19N5O
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