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 ethyl 4-[[2-[(3R)-3-aminopiperidin-1-yl]-3-[(2-cyanophenyl)methyl]-4-oxothieno[3,2-d]pyrimidine-6-carbonyl]amino]butanoate is given. What is its corresponding molecular formula?
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C26H30N6O4S
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