You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (7-methoxypyrazolo[1,5-a]pyridin-3-yl)-[3-(oxetan-3-ylamino)azetidin-1-yl]methanone is given. What is its corresponding molecular formula?
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C15H18N4O3
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