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 methyl (2R,4S,5R)-5-acetamido-2-chloro-4-hydroxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate is given. What is its corresponding molecular formula?
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C18H26ClNO11
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