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 N-(4,6-difluoro-3-prop-2-ynyl-1,3-benzothiazol-2-ylidene)-2-(3-methoxyphenyl)acetamide into molecular formula.
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C19H14F2N2O2S
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