You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (3R)-4,4,4-trichloro-1-[(1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3lambda6-thia-4-azatricyclo[5.2.1.01,5]decan-4-yl]-3-methylbutan-1-one into molecular formula.
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C15H22Cl3NO3S
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