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 [(2R,3R,4S,5S)-5-[(6Z)-6-hydroxyimino-2-oxo-3H-pyridin-3-yl]-3,4-bis(2-methylpropanoyloxy)oxolan-2-yl]methyl 2-methylpropanoate is given. What is its corresponding molecular formula?
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C22H32N2O9
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