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 1-(difluoromethyl)-N-[[(2R)-oxolan-2-yl]methyl]-N-(pyridin-2-ylmethyl)pyrazole-3-carboxamide into molecular formula.
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C16H18F2N4O2
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