You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name ethyl 4-[butyl-[2-[4-(2-methylphenyl)-6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl]-2-oxoethyl]amino]-4-oxobutanoate into its molecular formula.
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C26H34N2O4S
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