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Under IUPAC nomenclature, a molecule named N-[2-[(4aR,6S,8aR)-2-amino-6-methyl-4a,5,6,8-tetrahydro-4H-pyrano[3,4-d][1,3]thiazin-8a-yl]-1,3-thiazol-4-yl]-5-chloropyridine-2-carboxamide is given. What is its corresponding molecular formula?
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C17H18ClN5O2S2
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