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 3-(5,5-dimethyl-4-oxo-3,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-2-yl)propanoic acid into molecular formula.
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C15H18N2O3S
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