You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[(3R,3aS,7aR)-1-(pyridine-2-carbonyl)-3,3a,5,6,7,7a-hexahydro-2H-pyrano[3,2-b]pyrrol-3-yl]methanesulfonamide .
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C14H19N3O4S
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