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 (2S,3S)-2-[(1,1-dioxo-1,2-benzothiazol-3-ylidene)amino]-3-methyl-1-(4-propan-2-ylpiperazin-1-yl)pentan-1-one is given. What is its corresponding molecular formula?
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C20H30N4O3S
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