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 1-(2-thiophen-2-yl-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide is given. What is its corresponding molecular formula?
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C20H22N4OS2
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