You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[4-[[(9-methoxy-4,5-dihydro-[1]benzoxepino[5,4-d][1,3]thiazol-2-yl)amino]methyl]cyclohexyl]methanesulfonamide into molecular formula.
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C20H27N3O4S2
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