You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(3S,3aS,7aR)-3-(pyridin-2-ylmethoxy)-3,3a,5,6,7,7a-hexahydro-2H-pyrano[3,2-b]pyrrol-1-yl]-(5-methylfuran-2-yl)methanone into its molecular formula.
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C19H22N2O4
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