You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1-ethylindol-3-yl)-[4-(naphthalen-1-ylmethyl)-6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl]methanone into molecular formula.
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C29H26N2OS
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