You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named methyl 3-[3-(2-propylpentanoyl)pyrazolo[1,5-a]pyridin-6-yl]oxyazetidine-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C20H27N3O4
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