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 2-(2-morpholin-4-yl-2-oxoethyl)sulfonyl-N-(3-prop-2-enyl-1,3-benzothiazol-2-ylidene)acetamide is given. What is its corresponding molecular formula?
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C18H21N3O5S2
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